The most frequently-asked question of all by visitors to this site has
to be “Where do you get all those crazy ideas?”. Well, I read
a lot of books…. Starting in January 2001,
I decided to keep a list of what I've read to share with folks
with similar interests. I read all kinds of stuff—technical
books, science fiction, trash novels, history, fringe science,
political screeds—you name it. My taste in literature is as
indiscriminate as it is voracious.
A book's appearing on this list does not necessarily mean I recommend you read it, nor even that it's worth reading at all in my opinion; it simply means that I've read it. Books so awful I couldn't bear to finish are not included in the list, but that's a rare occurrence (none I can recall since 1999).
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Conversely, books I've re-read are included—works sufficiently enlightening or entertaining to revisit deserve mention alongside new discoveries.
Computer books are included only if I read them cover-to-cover (or, equivalently, the whole thing in non-linear order); computer books I use as references are not included, nor are other reference books. You may consider some of the works listed here controversial and/or disreputable; their appearance does not constitute an endorsement of the views expressed in the volume. According to Shannon's theorem, you gain information only from messages which are not predictable; getting inside the head of somebody you disagree with and dissecting arguments which come to different conclusions than your own is an excellent way to broaden one's perspective, if only on the way that others think.
Since I live in Europe, I sometimes read books not available in the U.S. These books are linked to an Amazon.com site in the UK, France, or Germany where the book may be purchased. If you're an Amazon customer, you can order books from any Amazon subsidiary for delivery worldwide; they even already know your payment and shipping information! The only exceptions are heavily-promoted bestsellers with movie or television tie-ins, and you'll rarely if ever see such books in this list.
If there's a book you'd like to recommend, there's a
form at the bottom of the page
for that purpose. Happy page-turning!
2001 |
2002 |
2003 |
2004 |
The author, brother of William F. Buckley, is founder of a school of public speaking and author of several books on public speaking and two novels. Here, however, we have Buckley's impassioned, idiosyncratic, and (as far as I can tell) self-published rant against the iniquities of contemporary U.S. morals, politics, and culture. Bottom line: he doesn't like it—the last two sentences are “The supine and swinish American public is the reason why our society has become so vile. We are vile.” This book would have been well served had the author enlisted brother Bill or his editor to red-pencil the manuscript. How the humble apostrophe causes self-published authors to stumble! On page 342 we trip over the “biography of John Quincy Adam's” among numerous other exemplars of proletarian mispunctuation. On page 395, Michael Behe, author of Darwin's Black Box has his name given as “Rehe” (and in the index too). On page 143, he misquotes Alan Guth's Inflationary Universe as saying the grand unification energy is “1016 GeV”, thereby getting it wrong by thirteen orders of magnitude compared to the 1016 GeV a sharp-eyed proofreader would have caught. All of this, and Buckley's meandering off into anecdotes of his beloved hometown of Camden, South Carolina and philosophical disquisitions distract from the central question posed in the book which is both profound and disturbing: can a self-governing republic survive without a consensus moral code shared by a large majority of its citizens? This is a question stalwarts of Western civilisation need to be asking themselves in this non-judgemental, multi-cultural age, and I wish Buckley had posed it more clearly in this book, which despite the title, has nothing whatsoever to do with that regrettable yet prefixally-eponymous McNewspaper.
Question: Why is it important to screen bags for IEDs [Improvised Explosive Devices]?I wish I were making this up. The inspector general of the “Homeland Security Department” declined to say how many of the “screeners” who intimidate citizens, feel up women, and confiscate fingernail clippers and putatively dangerous and easily-pocketed jewelry managed to answer this one correctly. I call Bovard a “crypto-libertarian” because he clearly bases his analysis on libertarian principles, yet rarely observes that any polity with unconstrained government power and sedated sheeple for citizens will end badly, regardless of who wins the elections. As with his earlier books, sources for this work are exhaustively documented in 41 pages of endnotes.
- The IED batteries could leak and damage other passenger bags.
- The wires in the IED could cause a short to the aircraft wires.
- IEDs can cause loss of lives, property, and aircraft.
- The ticking timer could worry other passengers.
2005 |
This companion to Hypersonic: The Story of the North American X-15 (March 2004) contains more than 400 photos, 50 in colour, which didn't make the cut for the main volume, as well as some which came to hand only after its publication. There's nothing really startling, but if you can't get enough of this beautiful flying machine, here's another hefty dose of well-captioned period photos, many never before published. The two page spread on pp. 58–59 is interesting. It's a North American Aviation presentation from 1962 on how the X-15 could be used for various advanced propulsion research programs, including ramjets, variable cycle turboramjets, scramjets, and liquid air cycle engines (LACE) burning LH2 and air liquefied on board. More than forty years later, these remain “advanced propulsion” concepts, with scant progress to show for the intervening decades. None of the X-15 propulsion research programs were ever flown.
/sbin/iptables -A INPUT -p tcp --syn --dport 80 -m iplimit \ --iplimit-above 20 --iplimit-mask 32 -j REJECTAnybody who tries to open more than 20 connections will get whacked on each additional SYN packet. You can see whether this rule is affecting too many legitimate connections with the status query:
/sbin/iptables -L -vGeekly reading, to be sure, but just the thing if you're responsible for defending an Internet server or site from malefactors in the Internet Slum.
Authors of popular science books are cautioned that each equation they include (except, perhaps E=mc²) will halve the sales of their book. Penrose laughs in the face of such fears. In this “big damned fat square book” of 1050 pages of main text, there's an average of one equation per page, which, according to conventional wisdom should reduce readership by a factor of 2−1050 or 8.3×10−317, so the single copy printed would have to be shared by among the 1080 elementary particles in the universe over an extremely long time. But, according to the Amazon sales ranking as of today, this book is number 71 in sales—go figure.
Don't deceive yourself; in committing to read this book you are making a substantial investment of time and brain power to master the underlying mathematical concepts and their application to physical theories. If you've noticed my reading being lighter than usual recently, both in terms of number of books and their intellectual level, it's because I've been chewing through this tome for last two and a half months and it's occupied my cerebral capacity to the exclusion of other works. But I do not regret for a second the time I've spent reading this work and working the exercises, and I will probably make a second pass through it in a couple of years to reinforce the mathematical toolset into my aging neurons. As an engineer whose formal instruction in mathematics ended with differential equations, I found chapters 12–15 to be the “hump”—after making it through them (assuming you've mastered their content), the rest of the book is much more physical and accessible. There's kind of a phase transition between the first part of the book and chapters 28–34. In the latter part of the book, Penrose gives free rein to his own view of fundamental physics, introducing his objective reduction of the quantum state function (OR) by gravity, twistor theory, and a deconstruction of string theory which may induce apoplexy in researchers engaged in that programme. But when discussing speculative theories, he takes pains to identify his own view when it differs from the consensus, and to caution the reader where his own scepticism is at variance with a widely accepted theory (such as cosmological inflation). If you really want to understand contemporary physics at the level of professional practitioners, I cannot recommend this book too highly. After you've mastered this material, you should be able to read research reports in the General Relativity and Quantum Cosmology preprint archives like the folks who write and read them. Imagine if, instead of two or three hundred taxpayer funded specialists, four or five thousand self-educated people impassioned with figuring out how nature does it contributed every day to our unscrewing of the inscrutable. Why, they'll say it's a movement. And that's exactly what it will be.In this book, mathematician and philosopher William A. Dembski attempts to lay the mathematical and logical foundation for inferring the presence of intelligent design in biology. Note that “intelligent design” needn't imply divine or supernatural intervention—the “directed panspermia” theory of the origin of life proposed by co-discoverer of the structure of DNA and Nobel Prize winner Francis Crick is a theory of intelligent design which invokes no deity, and my perpetually unfinished work The Rube Goldberg Variations and the science fiction story upon which it is based involve searches for evidence of design in scientific data, not in scripture.
You certainly won't find any theology here. What you will find is logical and mathematical arguments which sometimes ascend (or descend, if you wish) into prose like (p. 153), “Thus, if P characterizes the probability of E0 occurring and f characterizes the physical process that led from E0 to E1, then P∘f −1 characterizes the probability of E1 occurring and P(E0) ≤ P∘f −1(E1) since f(E0) = E1 and thus E0 ⊂ f −1(E1).” OK, I did cherry-pick that sentence from a particularly technical section which the author advises readers to skip if they're willing to accept the less formal argument already presented. Technical arguments are well-supplemented by analogies and examples throughout the text.
Dembski argues that what he terms “complex specified information” is conclusive evidence for the presence of design. Complexity (the Shannon information measure) is insufficient—all possible outcomes of flipping a coin 100 times in a row are equally probable—but presented with a sequence of all heads, all tails, alternating heads and tails, or a pattern in which heads occurred only for prime numbered flips, the evidence for design (in this case, cheating or an unfair coin) would be considered overwhelming. Complex information is considered specified if it is compressible in the sense of Chaitin-Kolmogorov-Solomonoff algorithmic information theory, which measures the randomness of a bit string by the length of the shortest computer program which could produce it. The overwhelming majority of 100 bit strings cannot be expressed more compactly than simply by listing the bits; the examples given above, however, are all highly compressible. This is the kind of measure, albeit not rigorously computed, which SETI researchers would use to identify a signal as of intelligent origin, which courts apply in intellectual property cases to decide whether similarity is accidental or deliberate copying, and archaeologists use to determine whether an artefact is of natural or human origin. Only when one starts asking these kinds of questions about biology and the origin of life does controversy erupt!
Chapter 3 proposes a “Law of Conservation of Information” which, if you accept it, would appear to rule out the generation of additional complex specified information by the process of Darwinian evolution. This would mean that while evolution can and does account for the development of resistance to antibiotics in bacteria and pesticides in insects, modification of colouration and pattern due to changes in environment, and all the other well-confirmed cases of the Darwinian mechanism, that innovation of entirely novel and irreducibly complex (see chapter 5) mechanisms such as the bacterial flagellum require some external input of the complex specified information they embody. Well, maybe…but one should remember that conservation laws in science, unlike invariants in mathematics, are empirical observations which can be falsified by a single counter-example. Niels Bohr, for example, prior to its explanation due to the neutrino, theorised that the energy spectrum of nuclear beta decay could be due to a violation of conservation of energy, and his theory was taken seriously until ruled out by experiment.
Let's suppose, for the sake of argument, that Darwinian evolution does explain the emergence of all the complexity of the Earth's biosphere, starting with a single primordial replicating lifeform. Then one still must explain how that replicator came to be in the first place (since Darwinian evolution cannot work on non-replicating organisms), and where the information embodied in its molecular structure came from. The smallest present-day bacterial genomes belong to symbiotic or parasitic species, and are in the neighbourhood of 500,000 base pairs, or roughly 1 megabit of information. Even granting that the ancestral organism might have been much smaller and simpler, it is difficult to imagine a replicator capable of Darwinian evolution with an information content 1000 times smaller than these bacteria, Yet randomly assembling even 500 bits of precisely specified information seems to be beyond the capacity of the universe we inhabit. If you imagine every one of the approximately 1080 elementary particles in the universe trying combinations every Planck interval, 1045 times every second, it would still take about a billion times the present age of the universe to randomly discover a 500 bit pattern. Of course, there are doubtless many patterns which would work, but when you consider how conservative all the assumptions are which go into this estimate, and reflect upon the evidence that life seemed to appear on Earth just about as early as environmental conditions permitted it to exist, it's pretty clear that glib claims that evolution explains everything and there are just a few details to be sorted out are arm-waving at best and propaganda at worst, and that it's far too early to exclude any plausible theory which could explain the mystery of the origin of life. Although there are many points in this book with which you may take issue, and it does not claim in any way to provide answers, it is valuable in understanding just how difficult the problem is and how many holes exist in other, more accepted, explanations. A clear challenge posed to purely naturalistic explanations of the origin of terrestrial life is to suggest a prebiotic mechanism which can assemble adequate specified information (say, 500 bits as the absolute minimum) to serve as a primordial replicator from the materials available on the early Earth in the time between the final catastrophic bombardment and the first evidence for early life.
The year is 2030, and every complacent person who asked rhetorically, “How much worse can it get?” has seen the question answered beyond their worst nightmares. What's left of the United States is fighting to put down the secessionist mountain states of New Columbia, and in the cities of the East, people are subject to random searches by jackbooted Lightning Squads, when they aren't shooting up clandestine nursery schools operated by anarchist parents who refuse to deliver their children into government indoctrination. This is the kind of situation which cries out for a superhero and, lo and behold, onto the stage steps The Black Arrow and his deadly serious but fun-loving band to set things right through the time-tested strategy of killing the bastards. The Black Arrow has a lot in common with Batman—actually maybe a tad too much. Like Batman, he's a rich and resourceful man with a mission (but no super powers), he operates in New York City, which is called “Gotham” in the novel, and he has a secret lair in a cavern deep beneath the city.
There is a modicum of libertarian background and philosophy, but it never gets in the way of the story. There is enough explicit violence and copulation for an R rated movie—kids and those with fragile sensibilities should give this one a miss. Some of the verbal imagery in the story is so vivid you can almost see it erupting from the page—this would make a tremendous comic book adaptation or screenplay for an alternative universe Hollywood where stories of liberty were welcome.
Gregg Herken, a senior historian and curator at the National Air and Space Museum, draws upon these resources to explore the accomplishments, conflicts, and controversies surrounding Lawrence, Oppenheimer, and Teller, and the cold war era they played such a large part in defining. The focus is almost entirely on the period in which the three were active in weapons development and policy—there is little discussion of their prior scientific work, nor of Teller's subsequent decades on the public stage. This is a serious academic history, with almost 100 pages of source citations and bibliography, but the story is presented in an engaging manner which leaves the reader with a sense of the personalities involved, not just their views and actions. The author writes with no discernible ideological bias, and I noted only one insignificant technical goof.
A certain segment of the dogma-based community of postmodern academics and their hangers-on seems to have no difficulty whatsoever believing that Darwinian evolution explains every aspect of the origin and diversification of life on Earth while, at the same time, denying that genetics—the mechanism which underlies evolution—plays any part in differentiating groups of humans. Doublethink is easy if you never think at all. Among those to whom evidence matters, here's a pretty astonishing fact to ponder. In the last four Olympic games prior to the publication of this book in the year 2000, there were thirty-two finalists in the men's 100-metre sprint. All thirty-two were of West African descent—a region which accounts for just 8% of the world's population. If finalists in this event were randomly chosen from the entire global population, the probability of this concentration occurring by chance is 0.0832 or about 8×10−36, which is significant at the level of more than twelve standard deviations. The hardest of results in the flintiest of sciences—null tests of conservation laws and the like—are rarely significant above 7 to 8 standard deviations.
Now one can certainly imagine any number of cultural and other non-genetic factors which predispose those with West African ancestry toward world-class performance in sprinting, but twelve standard deviations? The fact that running is something all humans do without being taught, and that training for running doesn't require any complicated or expensive equipment (as opposed to sports such as swimming, high-diving, rowing, or equestrian events), and that champions of West African ancestry hail from countries around the world, should suggest a genetic component to all but the most blinkered of blank slaters.
Taboo explores the reality of racial differences in performance in various sports, and the long and often sordid entangled histories of race and sports, including the tawdry story of race science and eugenics, over-reaction to which has made most discussion of human biodiversity, as the title of book says, taboo. The equally forbidden subject of inherent differences in male and female athletic performance is delved into as well, with a look at the hormone dripping “babes from Berlin” manufactured by the cruel and exploitive East German sports machine before the collapse of that dismal and unlamented tyranny.
Those who know some statistics will have no difficulty understanding what's going on here—the graph on page 255 tells the whole story. I wish the book had gone into a little more depth about the phenomenon of a slight shift in the mean performance of a group—much smaller than individual variation—causing a huge difference in the number of group members found in the extreme tail of a normal distribution. Another valuable, albeit speculative, insight is that if one supposes that there are genes which confer advantage to competitors in certain athletic events, then given the intense winnowing process world-class athletes pass through before they reach the starting line at the Olympics, it is plausible all of them at that level possess every favourable gene, and that the winner is determined by training, will to win, strategy, individual differences, and luck, just as one assumed before genetics got mixed up in the matter. It's just that if you don't have the genes (just as if your legs aren't long enough to be a runner), you don't get anywhere near that level of competition.
Unless research in these areas is suppressed due to an ill-considered political agenda, it is likely that the key genetic components of athletic performance will be identified in the next couple of decades. Will this mean that world-class athletic competition can be replaced by DNA tests? Of course not—it's just that one factor in the feedback loop of genetic endowment, cultural reinforcement of activities in which group members excel, and the individual striving for excellence which makes competitors into champions will be better understood.
From this viewpoint, every compromise with fear societies and their tyrants in the interest of “stability” and “geopolitics” is always ill-considered, not just in terms of the human rights of those who live there, but in the self-interest of all free people. Fear societies require an enemy, internal or external, to unite their victims behind the tyrant, and history shows how fickle the affections of dictators can be when self-interest is at stake.
The disastrous example of funding Arafat's ugly dictatorship over the Palestinian people is dissected in detail, but the message is applicable everywhere diplomats argue for a “stable partner” over the inherent human right of people to own their own lives and govern themselves. Sharansky is forthright in saying it's better to face a democratically elected fanatic opponent than a dictator “we can do business with”, because ultimately the democratic regime will converge on meeting the needs of its citizens, while the dictator will focus on feathering his own nest at the expense of those he exploits.
If you're puzzled about which side to back in all the myriad conflicts around the globe, you could do a lot worse that simply picking the side which comes out best in Sharansky's “town square test”. Certainly, the world would be a better place if the diplomats who prattle on about “complexity” and realpolitik were hit over the head with the wisdom of an author who spent 13 years in Siberian labour camps rather than compromise his liberty.
They will give the sense of every article of the constitution, that may from time to time come before them. And in their decisions they will not confine themselves to any fixed or established rules, but will determine, according to what appears to them, the reason and spirit of the constitution. The opinions of the supreme court, whatever they may be, will have the force of law; because there is no power provided in the constitution, that can correct their errors, or controul [sic] their adjudications. From this court there is no appeal.The fact that politicians are at loggerheads over the selection of judges has little or nothing to do with ideology and everything to do with judges having usurped powers explicitly reserved for representatives accountable to their constituents in regular elections. How to fix it? Well, I proposed my own humble solution here not so long ago, and the author of this book suggests 12 year terms for Supreme Court judges staggered with three year expiry. Given how far the unchallenged assertion of judicial supremacy has gone, a constitutional remedy in the form of a legislative override of judicial decisions (with the same super-majority as required to override an executive veto) might also be in order.
Their bodies go from being the little white creatures they are to light. But when they become light, they first become like cores of light, like molten light. The appearance (of the core of light) is one of solidity. They change colors and a haze is projected around the (interior core which is centralized; surrounding this core in an immediate environment is a denser, tighter) haze (than its outer peripheries). The eyes are the last to go (as one perceives the process of the creatures disappearing into the light), and then they just kind of disappear or are absorbed into this. … We are or exist through our flesh, and they are or exist through whatever it is they are.Got that? If not, there is much, much more along these lines in the extended babblings of this and a dozen other abductees, developed during the author's therapy sessions with them. Now, de mortuis nihil nisi bonum (Mack was killed in a traffic accident in 2004), and having won a Pulitzer Prize for his biography of T.E. Lawrence in addition to his career as a professor of psychiatry at the Harvard Medical School and founder of the psychiatry department at Cambridge Hospital, his credentials incline one to hear him out, however odd the message may seem to be. One's mind, however, eventually summons up Thomas Jefferson's (possibly apocryphal) remark upon hearing of two Yale professors who investigated a meteor fall in Connecticut and pronounced it genuine, “Gentlemen, I would rather believe that two Yankee professors would lie than believe that stones fall from heaven.” Well, nobody's accusing Professor Mack of lying, but the leap from the oh-wow, New Age accounts elicited by hypnotic regression and presented here, to the conclusion that they are the result of a genuine phenomenon of some kind, possibly contact with “another plane of reality” is an awfully big one, and simply wading through the source material proved more than I could stomach on my first attempt. So, the book went back on the unfinished shelf, where it continued to glare at me balefully until a few days ago when, looking for something to read, I exclaimed, “Hey, if I can make it through The Ghosts of Evolution, surely I can finish this one!” So I did, picking up from the bookmark I left where my first assault on the summit petered out. In small enough doses, much of this material can be quite funny. This paperback edition includes two appendices added to address issues raised after the publication of the original hardcover. In the first of these (p. 390), Mack argues that the presence of a genuine phenomenon of some kind is strongly supported by “…the reports of the experiencers themselves. Although varied in some respects, these are so densely consistent as to defy conventional psychiatric explanations.” Then, a mere three pages later, we are informed:
The aliens themselves seem able to change or disguise their form, and, as noted, may appear initially to the abductees as various kinds of animals, or even as ordinary human beings, as in Peter's case. But their shape-shifting abilities extend to their vehicles and to the environments they present to the abductees, which include, in this sample, a string of motorcycles (Dave), a forest and conference room (Catherine), images of Jesus in white robes (Jerry), and a soaring cathedral-like structure with stained glass windows (Sheila). One young woman, not written about in this book, recalled at age seven seeing a fifteen-foot kangaroo in a park, which turned out to be a small spacecraft.Now that's “densely consistent”! One is also struck by how insipidly banal are the messages the supposed aliens deliver, which usually amount to New Age cerebral suds like “All is one”, “Treat the Earth kindly”, and the rest of the stuff which appeals to those who are into these kinds of things in the first place. Occam's razor seems to glide much more smoothly over the supposition that we are dealing with seriously delusional people endowed with vivid imaginations than that these are “transformational” messages sent by superior beings to avert “planetary destruction” by “for-profit business corporations” (p. 365, Mack's words, not those of an abductee). Fifteen-foot kangaroo? Well, anyway, now this book can hop onto the dubious shelf in the basement and stop making me feel guilty! For a sceptical view of the abduction phenomenon, see Philip J. Klass's UFO Abductions: A Dangerous Game.
21: A sour, foggy Sunday.The laconic diary entries are spun into a fictionalised but plausible story of farm life focusing on the self-reliant lifestyle and the tools and techniques upon which it was founded. Noah Blake was atypical in being an only child at a time when large families were the norm; Sloane takes advantage of this in showing Noah learning all aspects of farm life directly from his father. The numerous detailed illustrations provide a delightful glimpse into the world of two centuries ago and an appreciation for the hard work and multitude of skills it took to make a living from the land in those days.
22: Heavy downpour, but good for the crops.
23: Second day of rain. Father went to work under cover at the mill.
24: Clear day. Worked in the fields. Some of the corn has washed away.
Saudi engineers calculated that the soil particulates beneath the surface of most of their three hundred known reserves are so fine that radioactive releases there would permit the contamination to spread widely through the soil subsurface, carrying the radioactivity far under the ground and into the unpumped oil. This gave Petro SE the added benefit of ensuring that even if a new power in the Kingdom could rebuild the surface infrastructure, the oil reserves themselves might be unusable for years.Hey, you guys in the back—enough with the belly laughs! Did any of the editors at Random House think to work out, even if you stipulated that radioactive contamination could somehow migrate from the surface down through hundreds to thousands of metres of rock (how, due to the abundant rain?), just how much radioactive contaminant you'd have to mix with the estimated two hundred and sixty billion barrels of crude oil in the Saudi reserves to render it dangerously radioactive? In any case, even if you could magically transport the radioactive material into the oil bearing strata and supernaturally mix it with the oil, it would be easy to separate during the refining process. Finally, there's the question of why, if the Saudis have gone to all the trouble to rig their oil facilities to self-destruct, it has remained a secret waiting to be revealed in this book. From a practical standpoint, almost all of the workers in the Saudi oil fields are foreigners. Certainly some of them would be aware of such a massive effort and, upon retirement, say something about it which the news media would pick up. But even if the secret could be kept, we're faced with the same question of deterrence which arose in the conclusion of Dr. Strangelove with the Soviet doomsday machine—it's idiotic to build a doomsday machine and keep it a secret! Its only purpose is to deter a potential attack, and if attackers don't know there's a doomsday machine, they won't be deterred. Precisely the same logic applies to the putative Saudi self-destruct button. Now none of this argumentation proves in any way that the Saudis haven't rigged their oil fields to blow up and scatter radioactive material on the debris, just that it would be a phenomenally stupid thing for them to try to do. But then, there are plenty of precedents for the Saudis doing dumb things—they have squandered the greatest fortune in the history of the human race and, while sitting on a quarter of all the world's oil, seen their per capita GDP erode to fall between that of Poland and Latvia. If, indeed, they have done something so stupid as this scorched earth scheme, let us hope they manage the succession to the throne, looming in the near future, in a far more intelligent fashion.
“The nice thing about this betatron,” said Channing, “is the fact that it can and does run both ends on the same supply. The current and voltage phases are correct so that we do not require two supplies which operate in a carefully balanced condition. The cyclotron is one of the other kinds; though the one supply is strictly D.C., the strength of the field must be controlled separately from the supply to the oscillator that runs the D plates. You're sitting on a fence, juggling knobs and stuff all the time you are bombarding with a cyc.” (From “Recoil”, p. 95)Notwithstanding such passages, and how quaint an interplanetary radio relay station based on vacuum tubes with a staff of 2700 may seem to modern readers, these are human stories which are, on occasions, breathtaking in their imagination and modernity. The account of the impact of an “efficiency expert” on a technology-based operation in “QRM—Interplanetary” is as trenchant (and funny) as anything in Dilbert. The pernicious effect of abusive patent litigation on innovation, the economics of a technological singularity created by what amounts to a nanotechnological assembler, and the risk of identity theft, are the themes of other stories which it's difficult to imagine having been written half a century ago, along with timeless insights into engineering. One, in particular, from “Firing Line” (p. 259) so struck me when I read it thirty-odd years ago that it has remained in my mind ever since as one of the principal differences between the engineer and the tinkerer, “They know one simple rule about the universe. That rule is that if anything works once, it may be made to work again.” The tinkerer is afraid to touch something once it mysteriously starts to work; an engineer is eager to tear it apart and figure out why. I found the account of the end of Venus Equilateral in “Mad Holiday” disturbing when I first read it, but now see it as a celebration of technological obsolescence as an integral part of progress, to be welcomed, and the occasion for a blow-out party, not long faces and melancholy. Arthur C. Clarke, who contributes the introduction to this collection, read these stories while engaged in his own war work, in copies of Astounding sent from America by Willy Ley, acknowledges that these tales of communication relays in space may have played a part in his coming up with that idea. This book is out of print, but inexpensive used copies are readily available.
Here, it is relevant to describe a corridor meeting with a mature colleague - keen on Quantum Mechanical calculations, - who had not the friends to give him good grades in his grant applications and thus could not employ students to work with him. I commiserated on his situation, - a professor in a science department without grant money. How can you publish I blurted out, rather tactlessly. “Ah, but I have Lili” he said (I've changed his wife's name). I knew Lili, a pleasant European woman interested in obscure religions. She had a high school education but no university training. “But” … I began to expostulate. “It's ok, ok”, said my colleague. “Well, we buy the programs to calculate bond strengths, put it in the computer and I tell Lili the quantities and she writes down the answer the computer gives. Then, we write a paper.” The program referred to is one which solves the Schrödinger equation and provides energy values, e.g., for bond strength in chemical compounds.Now sit back, close your eyes, and imagine five hundred pages of this; in spelling, grammar, accuracy, logic, and command of the subject matter it reads like a textbook-length Slashdot post. Several recurrent characteristics are manifest in this excerpt. The author repeatedly, though not consistently, capitalises Important Words within Sentences; he uses hyphens where em-dashes are intended, and seems to have invented his own punctuation sign: a comma followed by a hyphen, which is used interchangeably with commas and em-dashes. The punctuation gives the impression that somebody glanced at the manuscript and told the author, “There aren't enough commas in it”, whereupon he went through and added three or four thousand in completely random locations, however inane. There is an inordinate fondness for “e.g.”, “i.e.”, and “cf.”, and they are used in ways which make one suspect the author isn't completely clear on their meaning or the distinctions among them. And regarding the footnote quoted above, did I mention that the author's wife is named “Lily”, and hails from Austria? Further evidence of the attention to detail and respect for the reader can be found in chapter 3 where most of the source citations in the last thirty pages are incorrect, and the blank cross-references scattered throughout the text. Not only is it obvious the book has not been fact checked, nor even proofread; it has never even been spelling checked—common words are misspelled all over. Bockris never manages the Slashdot hallmark of misspelling “the”, but on page 475 he misspells “to” as “ot”. Throughout you get the sense that what you're reading is not so much a considered scientific exposition and argument, but rather the raw unedited output of a keystroke capturing program running on the author's computer. Some readers may take me to task for being too harsh in these remarks, noting that the book was self-published by the author at age 82. (How do I know it was self-published? Because my copy came with the order from Amazon to the publisher to ship it to their warehouse folded inside, and the publisher's address in this document is directly linked to the author.) Well, call me unkind, but permit me to observe that readers don't get a quality discount based on the author's age from the price of US$34.95, which is on the very high end for a five hundred page paperback, nor is there a disclaimer on the front or back cover that the author might not be firing on all cylinders. Certainly, an eminent retired professor ought to be able to call on former colleagues and/or students to review a manuscript which is certain to become an important part of his intellectual legacy, especially as it attempts to expound a new paradigm for science. Even the most cursory editing to remove needless and tedious repetition could knock 100 pages off this book (and eliminating the misinformation and nonsense could probably slim it down to about ten). The vast majority of citations are to secondary sources, many popular science or new age books. Apart from these drawbacks, Bockris, like many cranks, seems compelled to personally attack Einstein, claiming his work was derivative, hinting at plagiarism, arguing that its significance is less than its reputation implies, and relating an unsourced story claiming Einstein was a poor husband and father (and even if he were, what does that have to do with the correctness and importance of his scientific contributions?). In chapter 2, he rants upon environmental and economic issues, calls for a universal dole (p. 34) for those who do not work (while on p. 436 he decries the effects of just such a dole on Australian youth), calls (p. 57) for censorship of music, compulsory population limitation, and government mandated instruction in philosophy and religion along with promotion of religious practice. Unlike many radical environmentalists of the fascist persuasion, he candidly observes (p. 58) that some of these measures “could not achieved under the present conditions of democracy”. So, while repeatedly inveighing against the corruption of government-funded science, he advocates what amounts to totalitarian government—by scientists.
2006 |
Contrast the present — think how different was a meeting in the 2020s of the National Joint Council, which has been retained for form's sake. On the one side sit the I.Q.s of 140, on the other the I.Q.s of 99. On the one side the intellectual magnates of our day, on the other honest, horny-handed workmen more at home with dusters than documents. On the one side the solid confidence born of hard-won achievement; on the other the consciousness of a just inferiority.Seriously, anybody who doesn't see the satire in this must be none too Swift. Although the book is cast as a retrospective from 2038, and there passing references to atomic stations, home entertainment centres, school trips to the Moon and the like, technologically the world seems very much like that of 1950s. There is one truly frightening innovation, however. On p. 110, discussing the shrinking job market for shop attendants, we're told, “The large shop with its more economical use of staff had supplanted many smaller ones, the speedy spread of self-service in something like its modern form had reduced the number of assistants needed, and piped distribution of milk, tea, and beer was extending rapidly.” To anybody with personal experience with British plumbing and English beer, the mere thought of the latter being delivered through the former is enough to induce dystopic shivers of 1984 magnitude. Looking backward from almost fifty years on, this book can be read as an alternative history of the last half-century. In the eyes of many with a libertarian or conservative inclination, just when the centuries-long battle against privilege and prejudice was finally being won: in the 1950s and early 60s when Young's book appeared, the dream of equal opportunity so eloquently embodied in Dr. Martin Luther King's “I Have a Dream” speech began to evaporate in favour of equality of results (by forced levelling and dumbing down if that's what it took), group identity and entitlements, and the creation of a permanently dependent underclass from which escape was virtually impossible. The best works of alternative history are those which change just one thing in the past and then let the ripples spread outward over the years. You can read this story as a possible future in which equal opportunity really did completely triumph over egalitarianism in the sixties. For those who assume that would have been an unqualifiedly good thing, here is a cautionary tale well worth some serious reflexion.
Paging Friar Ockham! If unnecessarily multiplying hypotheses are stubble indicating a fuzzy theory, it's pretty clear which of these is in need of the razor! Further, while one can imagine scientific investigation discovering evidence for Theory 1, almost all of the mechanisms which underlie Theory 2 remain, barring some conceptual breakthrough equivalent to looking inside a black hole, forever hidden from science by an impenetrable horizon through which no causal influence can propagate. So severe is this problem that chapter 9 of the book is devoted to the question of how far theoretical physics can go in the total absence of experimental evidence. What's more, unlike virtually every theory in the history of science, which attempted to describe the world we observe as accurately and uniquely as possible, Theory 2 predicts every conceivable universe and says, hey, since we do, after all, inhabit a conceivable universe, it's consistent with the theory. To one accustomed to the crystalline inevitability of Newtonian gravitation, general relativity, quantum electrodynamics, or the laws of thermodynamics, this seems by comparison like a California blonde saying “whatever”—the cosmology of despair. Scientists will, of course, immediately rush to attack Theory 1, arguing that a being such as that it posits would necessarily be “indistinguishable from magic”, capable of explaining anything, and hence unfalsifiable and beyond the purview of science. (Although note that on pp. 192–197 Susskind argues that Popperian falsifiability should not be a rigid requirement for a theory to be deemed scientific. See Lee Smolin's Scientific Alternatives to the Anthropic Principle for the argument against the string landscape theory on the grounds of falsifiability, and the 2004 Smolin/Susskind debate for a more detailed discussion of this question.) But let us look more deeply at the attributes of what might be called the First Cause of Theory 2. It not only permeates all of our universe, potentially spawning a bubble which may destroy it and replace it with something different, it pervades the abstract landscape of all possible universes, populating them with an infinity of independent and diverse universes over an eternity of time: omnipresent in spacetime. When a universe is created, all the parameters which ultimately govern its ultimate evolution (under the probabilistic laws of quantum mechanics, to be sure) are fixed at the moment of creation: omnipotent to create any possibility, perhaps even varying the mathematical structures underlying the laws of physics. As a budded off universe evolves, whether a sterile formless void or teeming with intelligent life, no information is ever lost in its quantum evolution, not even down a black hole or across a cosmic horizon, and every quantum event splits the universe and preserves all possible outcomes. The ensemble of universes is thus omniscient of all its contents. Throw in intelligent and benevolent, and you've got the typical deity, and since you can't observe the parallel universes where the action takes place, you pretty much have to take it on faith. Where have we heard that before? Lest I be accused of taking a cheap shot at string theory, or advocating a deistic view of the universe, consider the following creation story which, after John A. Wheeler, I shall call “Creation without the Creator”. Many extrapolations of continued exponential growth in computing power envision a technological singularity in which super-intelligent computers designing their own successors rapidly approach the ultimate physical limits on computation. Such computers would be sufficiently powerful to run highly faithful simulations of complex worlds, including intelligent beings living within them which need not be aware they were inhabiting a simulation, but thought they were living at the “top level”, who eventually passed through their own technological singularity, created their own simulated universes, populated them with intelligent beings who, in turn,…world without end. Of course, each level of simulation imposes a speed penalty (though, perhaps not much in the case of quantum computation), but it's not apparent to the inhabitants of the simulation since their own perceived time scale is in units of the “clock rate” of the simulation. If an intelligent civilisation develops to the point where it can build these simulated universes, will it do so? Of course it will—just look at the fascination crude video game simulations have for people today. Now imagine a simulation as rich as reality and unpredictable as tomorrow, actually creating an inhabited universe—who could resist? As unlimited computing power becomes commonplace, kids will create innovative universes and evolve them for billions of simulated years for science fair projects. Call the mean number of simulated universes created by intelligent civilisations in a given universe (whether top-level or itself simulated) the branching factor. If this is greater than one, and there is a single top-level non-simulated universe, then it will be outnumbered by simulated universes which grow exponentially in numbers with the depth of the simulation. Hence, by the Copernican principle, or principle of mediocrity, we should expect to find ourselves in a simulated universe, since they vastly outnumber the single top-level one, which would be an exceptional place in the ensemble of real and simulated universes. Now here's the point: if, as we should expect from this argument, we do live in a simulated universe, then our universe is the product of intelligent design and Theory 1 is an absolutely correct description of its origin. Suppose this is the case: we're inside a simulation designed by a freckle-faced superkid for extra credit in her fifth grade science class. Is this something we could discover, or must it, like so many aspects of Theory 2, be forever hidden from our scientific investigation? Surprisingly, this variety of Theory 1 is quite amenable to experiment: neither revelation nor faith is required. What would we expect to see if we inhabited a simulation? Well, there would probably be a discrete time step and granularity in position fixed by the time and position resolution of the simulation—check, and check: the Planck time and distance appear to behave this way in our universe. There would probably be an absolute speed limit to constrain the extent we could directly explore and impose a locality constraint on propagating updates throughout the simulation—check: speed of light. There would be a limit on the extent of the universe we could observe—check: the Hubble radius is an absolute horizon we cannot penetrate, and the last scattering surface of the cosmic background radiation limits electromagnetic observation to a still smaller radius. There would be a limit on the accuracy of physical measurements due to the finite precision of the computation in the simulation—check: Heisenberg uncertainty principle—and, as in games, randomness would be used as a fudge when precision limits were hit—check: quantum mechanics.Theory 1: Intelligent Design. An intelligent being created the universe and chose the initial conditions and physical laws so as to permit the existence of beings like ourselves.
Theory 2: String Landscape. The laws of physics and initial conditions of the universe are chosen at random from among 10500 possibilities, only a vanishingly small fraction of which (probably no more than one in 10120) can support life. The universe we observe, which is infinite in extent and may contain regions where the laws of physics differ, is one of an infinite number of causally disconnected “pocket universes“ which spontaneously form from quantum fluctuations in the vacuum of parent universes, a process which has been occurring for an infinite time in the past and will continue in the future, time without end. Each of these pocket universes which, together, make up the “megaverse”, has its own randomly selected laws of physics, and hence the overwhelming majority are sterile. We find ourselves in one of the tiny fraction of hospitable universes because if we weren't in such an exceptionally rare universe, we wouldn't exist to make the observation. Since there are an infinite number of universes, however, every possibility not only occurs, but occurs an infinite number of times, so not only are there an infinite number of inhabited universes, there are an infinite number identical to ours, including an infinity of identical copies of yourself wondering if this paragraph will ever end. Not only does the megaverse spawn an infinity of universes, each universe itself splits into two copies every time a quantum measurement occurs. Our own universe will eventually spawn a bubble which will destroy all life within it, probably not for a long, long time, but you never know. Evidence for all of the other universes is hidden behind a cosmic horizon and may remain forever inaccessible to observation.
Might we expect surprises as we subject our simulated universe to ever more precise scrutiny, perhaps even astonishing the being which programmed it with our cunning and deviousness (as the author of any software package has experienced at the hands of real-world users)? Who knows, we might run into round-off errors which “hit us like a ton of bricks”! Suppose there were some quantity, say, that was supposed to be exactly zero but, if you went and actually measured the geometry way out there near the edge and crunched the numbers, you found out it differed from zero in the 120th decimal place. Why, you might be as shocked as the naïve Perl programmer who ran the program “printf("%.18f", 0.2)” and was aghast when it printed “0.200000000000000011” until somebody explained that with about 56 bits of mantissa in IEEE double precision floating point, you only get about 17 decimal digits (log10 256) of precision. So, what does a round-off in the 120th digit imply? Not Theory 2, with its infinite number of infinitely reproducing infinite universes, but simply that our Theory 1 intelligent designer used 400 bit numbers (log2 10120) in the simulation and didn't count on our noticing—remember you heard it here first, and if pointing this out causes the simulation to be turned off, sorry about that, folks! Surprises from future experiments which would be suggestive (though not probative) that we're in a simulated universe would include failure to find any experimental signature of quantum gravity (general relativity could be classical in the simulation, since potential conflicts with quantum mechanics would be hidden behind event horizons in the present-day universe, and extrapolating backward to the big bang would be meaningless if the simulation were started at a later stage, say at the time of big bang nucleosynthesis), and discovery of limits on the ability to superpose wave functions for quantum computation which could result from limited precision in the simulation as opposed to the continuous complex values assumed by quantum mechanics. An interesting theoretical program would be to investigate feasible experiments which, by magnifying physical effects similar to proposed searches for quantum gravity signals, would detect round-off errors of magnitude comparable to the cosmological constant.
But seriously, this is an excellent book and anybody who's interested in the strange direction in which the string theorists are veering these days ought to read it; it's well-written, authoritative, reasonably fair to opposing viewpoints (although I'm surprised the author didn't address the background spacetime criticism of string theory raised so eloquently by Lee Smolin), and provides a roadmap of how string theory may develop in the coming years. The only nagging question you're left with after finishing the book is whether after thirty years of theorising which comes to the conclusion that everything is predicted and nothing can be observed, it's about science any more.So prolific was Jules Verne that more than a century and a half after he began his writing career, new manuscripts keep turning up among his voluminous papers. In the last two decades, Paris au XXe siècle, the original un-mangled version of La chasse au météore (October 2002), and the present volume have finally made their way into print. Verne transformed the account of his own trip into a fictionalised travel narrative of a kind quite common in the 19th century but rarely encountered today. The fictional form gave him freedom to add humour, accentuate detail, and highlight aspects of the country and culture he was visiting without crossing the line into that other venerable literary genre, the travel tall tale. One suspects that the pub brawl in chapter 16 is an example of such embroidery, along with the remarkable steam powered contraption on p. 159 which prefigured Mrs. Tweedy's infernal machine in Chicken Run. The description of the weather, however, seems entirely authentic. Verne offered the manuscript to Hetzel, who published most of his work, but it was rejected and remained forgotten until it was discovered in a cache of Verne papers acquired by the city of Nantes in 1981. This 1989 edition is its first appearance in print, and includes six pages of notes on the history of the work and its significance in Verne's œuvre, notes on changes in the manuscript made by Verne, and a facsimile manuscript page.
What is remarkable in reading this novel is the extent to which it is a fully-developed “template” for Verne's subsequent Voyages extraordinaires: here we have an excitable and naïve voyager (think Michel Ardan or Passepartout) paired with a more stolid and knowledgeable companion (Barbicane or Phileas Fogg), the encyclopedist's exultation in enumeration, fascination with all forms of locomotion, and fun with language and dialect (particularly poor Jacques who beats the Dickens out of the language of Shakespeare). Often, when reading the early works of writers, you sense them “finding their voice”—not here. Verne is in full form, the master of his language and the art of story-telling, and fully ready, a few years later, with just a change of topic, to invent science fiction. This is not “major Verne”, and you certainly wouldn't want to start with this work, but if you've read most of Verne and are interested in how it all began, this is genuine treat.
This book is out of print. If you can't locate a used copy at a reasonable price at the Amazon link above, try abebooks.com. For comparison with copies offered for sale, the cover price in 1989 was FRF 95, which is about €14.50 at the final fixed rate.
He was born Graf Heinrich Karl Wilhelm Otto Friedrich von Übersetzenseehafenstadt, but changed his name to Nigel St. John Gloamthorpby, a.k.a. Lord Woadmire, in 1914. In his photograph, he looks every inch a von Übersetzenseehafenstadt, and he is free of the cranial geometry problem so evident in the older portraits. Lord Woadmire is not related to the original ducal line of Qwghlm, the Moore family (Anglicized from the Qwghlmian clan name Mnyhrrgh) which had been terminated in 1888 by a spectacularly improbable combination of schistosomiasis, suicide, long-festering Crimean war wounds, ball lightning, flawed cannon, falls from horses, improperly canned oysters, and rogue waves.On p. 352 we find one of the most lucid and concise explanations I've ever read of why it far more difficult to escape the grasp of now-obsolete technologies than most technologists may wish.
(This is simply because the old technology is universally understood by those who need to understand it, and it works well, and all kinds of electronic and software technology has been built and tested to work within that framework, and why mess with success, especially when your profit margins are so small that they can only be detected by using techniques from quantum mechanics, and any glitches vis-à-vis compatibility with old stuff will send your company straight into the toilet.)In two sentences on p. 564, he lays out the essentials of the original concept for Autodesk, which I failed to convey (providentially, in retrospect) to almost every venture capitalist in Silicon Valley in thousands more words and endless, tedious meetings.
“ … But whenever a business plan first makes contact with the actual market—the real world—suddenly all kinds of stuff becomes clear. You may have envisioned half a dozen potential markets for your product, but as soon as you open your doors, one just explodes from the pack and becomes so instantly important that good business sense dictates that you abandon the others and concentrate all your efforts.”And how many New York Times Best-Sellers contain working source code (p, 480) for a Perl program? A 1168 page mass market paperback edition is now available, but given the unwieldiness of such an edition, how much you're likely to thumb through it to refresh your memory on little details as you read it, the likelihood you'll end up reading it more than once, and the relatively small difference in price, the trade paperback cited at the top may be the better buy. Readers interested in the cryptographic technology and culture which figure in the book will find additional information in the author's Cryptonomicon cypher-FAQ.
…I think all this superstring stuff is crazy and it is in the wrong direction. … I don't like that they're not calculating anything. I don't like that they don't check their ideas. I don't like that for anything that disagrees with an experiment, they cook up an explanation—a fix-up to say “Well, it still might be true.”Feynman was careful to hedge his remark as being that of an elder statesman of science, who collectively have a history of foolishly considering the speculations of younger researchers to be nonsense, and he would have almost certainly have opposed any effort to cut off funding for superstring research, as it might be right, after all, and should be pursued in parallel with other promising avenues until they make predictions which can be tested by experiment, falsifying and leading to the exclusion of those candidate theories whose predictions are incorrect. One wonders, however, what Feynman's reaction would have been had he lived to contemplate the contemporary scene in high energy theoretical physics almost twenty years later. String theory and its progeny still have yet to make a single, falsifiable prediction which can be tested by a physically plausible experiment. This isn't surprising, because after decades of work and tens of thousands of scientific publications, nobody really knows, precisely, what superstring (or M, or whatever) theory really is; there is no equation, or set of equations from which one can draw physical predictions. Leonard Susskind, a co-founder of string theory, observes ironically in his book The Cosmic Landscape (March 2006), “On this score, one might facetiously say that String Theory is the ultimate epitome of elegance. With all the years that String Theory has been studied, no one has ever found a single defining equation! The number at present count is zero. We know neither what the fundamental equations of the theory are or even if it has any.” (p. 204). String theory might best be described as the belief that a physically correct theory exists and may eventually be discovered by the research programme conducted under that name.
From the time Feynman spoke through the 1990s, the goal toward which string theorists were working was well-defined: to find a fundamental theory which reproduces at the low energy limit the successful results of the standard model of particle physics, and explains, from first principles, the values of the many (there are various ways to count them, slightly different—the author gives the number as 18 in this work) free parameters of that theory, whose values are not predicted by any theory and must be filled in by experiment. Disturbingly, theoretical work in the early years of this century has convinced an increasing number of string theorists (but not all) that the theory (whatever it may turn out to be), will not predict a unique low energy limit (or “vacuum state”), but rather an immense “landscape” of possible universes, with estimates like 10100 and 10500 and even more bandied around (by comparison, there are only about 1080 elementary particles in the entire observable universe—a minuscule number compared to such as these). Most of these possible universes would be hideously inhospitable to intelligent life as we know and can imagine it (but our imagination may be limited), and hence it is said that the reason we find ourselves in one of the rare universes which contain galaxies, chemistry, biology, and the National Science Foundation is due to the anthropic principle: a statement, bordering on tautology, that we can only observe conditions in the universe which permit our own existence, and that perhaps either in a “multiverse” of causally disjoint or parallel realities, all the other possibilities exist as well, most devoid of observers, at least those like ourselves (triune glorgs, feeding on bare colour in universes dominated by quark-gluon plasma would doubtless deem our universe unthinkably cold, rarefied, and dead).
But adopting the “landscape” view means abandoning the quest for a theory of everything and settling for what amounts to a “theory of anything”. For even if string theorists do manage to find one of those 10100 or whatever solutions in the landscape which perfectly reproduces all the experimental results of the standard model (and note that this is something nobody has ever done and appears far out of reach, with legitimate reasons to doubt it is possible at all), then there will almost certainly be a bewildering number of virtually identical solutions with slightly different results, so that any plausible experiment which measures a quantity to more precision or discovers a previously unknown phenomenon can be accommodated within the theory simply by tuning one of its multitudinous dials and choosing a different solution which agrees with the experimental results. This is not what many of the generation who built the great intellectual edifice of the standard model of particle physics would have considered doing science.
Now if string theory were simply a chimæra being pursued by a small band of double-domed eccentrics, one wouldn't pay it much attention. Science advances by exploring lots of ideas which may seem crazy at the outset and discarding the vast majority which remain crazy after they are worked out in more detail. Whatever remains, however apparently crazy, stays in the box as long as its predictions are not falsified by experiment. It would be folly of the greatest magnitude, comparable to attempting to centrally plan the economy of a complex modern society, to try to guess in advance, by some kind of metaphysical reasoning, which ideas were worthy of exploration. The history of the S-matrix or “bootstrap” theory of the strong interactions recounted in chapter 11 is an excellent example of how science is supposed to work. A beautiful theory, accepted by a large majority of researchers in the field, which was well in accord with experiment and philosophically attractive, was almost universally abandoned in a few years after the success of the quark model in predicting new particles and the stunning deep inelastic scattering results at SLAC in the 1970s. String theory, however, despite not having made a single testable prediction after more than thirty years of investigation, now seems to risk becoming a self-perpetuating intellectual monoculture in theoretical particle physics. Among the 22 tenured professors of theoretical physics in the leading six faculties in the United States who received their PhDs after 1981, fully twenty specialise in string theory (although a couple now work on the related brane-world models). These professors employ graduate students and postdocs who work in their area of expertise, and when a faculty position opens up, may be expected to support candidates working in fields which complement their own research. This environment creates a great incentive for talented and ambitious students aiming for one the rare permanent academic appointments in theoretical physics to themselves choose string theory, as that's where the jobs are. After a generation, this process runs the risk of operating on its own momentum, with nobody in a position to step back and admit that the entire string theory enterprise, judged by the standards of genuine science, has failed, and does not merit the huge human investment by the extraordinarily talented and dedicated people who are pursuing it, nor the public funding it presently receives. If Edward Witten believes there's something still worth pursuing, fine: his self-evident genius and massive contributions to mathematical physics more than justify supporting his work. But this enterprise which is cranking out hundreds of PhDs and postdocs who are spending their most intellectually productive years learning a fantastically complicated intellectual structure with no grounding whatsoever in experiment, most of whom will have no hope of finding permanent employment in the field they have invested so much to aspire toward, is much more difficult to justify or condone. The problem, to state it in a manner more inflammatory than the measured tone of the author, and in a word of my choosing which I do not believe appears at all in his book, is that contemporary academic research in high energy particle theory is corrupt. As is usually the case with such corruption, the root cause is socialism, although the look-only-left blinders almost universally worn in academia today hides this from most observers there. Dwight D. Eisenhower, however, twigged to it quite early. In his farewell address of January 17th, 1961, which academic collectivists endlessly cite for its (prescient) warning about the “military-industrial complex”, he went on to say, although this is rarely quoted,In this revolution, research has become central; it also becomes more formalized, complex, and costly. A steadily increasing share is conducted for, by, or at the direction of, the Federal government. Today, the solitary inventor, tinkering in his shop, has been over shadowed by task forces of scientists in laboratories and testing fields. In the same fashion, the free university, historically the fountainhead of free ideas and scientific discovery, has experienced a revolution in the conduct of research. Partly because of the huge costs involved, a government contract becomes virtually a substitute for intellectual curiosity. For every old blackboard there are now hundreds of new electronic computers. The prospect of domination of the nation's scholars by Federal employment, project allocations, and the power of money is ever present and is gravely to be regarded.And there, of course, is precisely the source of the corruption. This enterprise of theoretical elaboration is funded by taxpayers, who have no say in how their money, taken under threat of coercion, is spent. Which researchers receive funds for what work is largely decided by the researchers themselves, acting as peer review panels. While peer review may work to vet scientific publications, as soon as money becomes involved, the disposition of which can make or break careers, all the venality and naked self- and group-interest which has undone every well-intentioned experiment in collectivism since Robert Owen comes into play, with the completely predictable and tediously repeated results. What began as an altruistic quest driven by intellectual curiosity to discover answers to the deepest questions posed by nature ends up, after a generation of grey collectivism, as a jobs program. In a sense, string theory can be thought of like that other taxpayer-funded and highly hyped program, the space shuttle, which is hideously expensive, dangerous to the careers of those involved with it (albeit in a more direct manner), supported by a standing army composed of some exceptional people and a mass of the mediocre, difficult to close down because it has carefully cultivated a constituency whose own self-interest is invested in continuation of the program, and almost completely unproductive of genuine science. One of the author's concerns is that the increasingly apparent impending collapse of the string theory edifice may result in the de-funding of other promising areas of fundamental physics research. I suspect he may under-estimate how difficult it is to get rid of a government program, however absurd, unjustified, and wasteful it has become: consider the space shuttle, or mohair subsidies. But perhaps de-funding is precisely what is needed to eliminate the corruption. Why should U.S. taxpayers be spending on the order of thirty million dollars a year on theoretical physics not only devoid of any near- or even distant-term applications, but also mostly disconnected from experiment? Perhaps if theoretical physics returned to being funded by universities from their endowments and operating funds, and by money raised from patrons and voluntarily contributed by the public interested in the field, it would be, albeit a much smaller enterprise, a more creative and productive one. Certainly it would be more honest. Sure, there may be some theoretical breakthrough we might not find for fifty years instead of twenty with massive subsidies. But so what? The truth is out there, somewhere in spacetime, and why does it matter (since it's unlikely in the extreme to have any immediate practical consequences) how soon we find it, anyway? And who knows, it's just possible a research programme composed of the very, very best, whose work is of such obvious merit and creativity that it attracts freely-contributed funds, exploring areas chosen solely on their merit by those doing the work, and driven by curiosity instead of committee group-think, might just get there first. That's the way I'd bet. For a book addressed to a popular audience which contains not a single equation, many readers will find it quite difficult. If you don't follow these matters in some detail, you may find some of the more technical chapters rather bewildering. (The author, to be fair, acknowledges this at the outset.) For example, if you don't know what the hierarchy problem is, or why it is important, you probably won't be able to figure it out from the discussion here. On the other hand, policy-oriented readers will have little difficulty grasping the problems with the string theory programme and its probable causes even if they skip the gnarly physics and mathematics. An entertaining discussion of some of the problems of string theory, in particular the question of “background independence”, in which the string theorists universally assume the existence of a background spacetime which general relativity seems to indicate doesn't exist, may be found in Carlo Rovelli's "A Dialog on Quantum Gravity". For more technical details, see Lee Smolin's Three Roads to Quantum Gravity. There are some remarkable factoids in this book, one of the most stunning being that the proposed TeV class muon colliders of the future will produce neutrino (yes, neutrino) radiation which is dangerous to humans off-site. I didn't believe it either, but look here—imagine the sign: “DANGER: Neutrino Beam”! A U.S. edition is scheduled for publication at the end of September 2006. The author has operated the Not Even Wrong Web log since 2004; it is an excellent source for news and gossip on these issues. The unnamed “excitable … Harvard faculty member” mentioned on p. 227 and elsewhere is Luboš Motl (who is, however, named in the acknowledgements), and whose own Web log is always worth checking out.
A nuclear isomer is an atomic nucleus which, due to having a greater spin, different shape, or differing alignment of the spin orientation and axis of symmetry, has more internal energy than the ground state nucleus with the same number of protons and neutrons. Nuclear isomers are usually produced in nuclear fusion reactions when the the addition of protons and/or neutrons to a nucleus in a high-energy collision leaves it in an excited state. Hundreds of nuclear isomers are known, but the overwhelming majority decay with gamma ray emission in about 10−14 seconds. In a few species, however, this almost instantaneous decay is suppressed for various reasons, and metastable isomers exist with half-lives ranging from 10−9 seconds (one nanosecond), to the isomer Tantalum-180m, which has a half-life of at least 1015 years and may be entirely stable; it is the only nuclear isomer found in nature and accounts for about one atom of 8300 in tantalum metal.
Some metastable isomers with intermediate half-lives have a remarkably large energy compared to the ground state and emit correspondingly energetic gamma ray photons when they decay. The Hafnium-178m2 (the “m2” denotes the second lowest energy isomeric state) nucleus has a half-life of 31 years and decays (through the m1 state) with the emission of 2.45 MeV in gamma rays. Now the fact that there's a lot of energy packed into a radioactive nucleus is nothing new—people were calculating the energy of disintegrating radium and uranium nuclei at the end of the 19th century, but all that energy can't be used for much unless you can figure out some way to release it on demand—as long as it just dribbles out at random, you can use it for some physics experiments and medical applications, but not to make loud bangs or turn turbines. It was only the discovery of the fission chain reaction, where the fission of certain nuclei liberates neutrons which trigger the disintegration of others in an exponential process, which made nuclear energy, for better or for worse, accessible.
So, as long as there is no way to trigger the release of the energy stored in a nuclear isomer, it is nothing more than an odd kind of radioactive element, the subject of a reasonably well-understood and somewhat boring topic in nuclear physics. If, however, there were some way to externally trigger the decay of the isomer to the ground state, then the way would be open to releasing the energy in the isomer at will. It is possible to trigger the decay of the Tantalum-180 isomer by 2.8 MeV photons, but the energy required to trigger the decay is vastly greater than the 0.075 MeV it releases, so the process is simply an extremely complicated and expensive way to waste energy.
Researchers in the small community interested in nuclear isomers were stunned when, in the January 25, 1999 issue of Physical Review Letters, a paper by Carl Collins and his colleagues at the University of Texas at Dallas reported they had triggered the release of 2.45 MeV in gamma rays from a sample of Hafnium-178m2 by irradiating it with a second-hand dental X-ray machine with the sample of the isomer sitting on a styrofoam cup. Their report implied, even with the crude apparatus, an energy gain of sixty times break-even, which was more than a million times the rate predicted by nuclear theory, if triggering were possible at all. The result, if real, could have substantial technological consequences: the isomer could be used as a nuclear battery, which could store energy and release it on demand with a density which dwarfed that of any chemical battery and was only a couple of orders of magnitude less than a fission bomb. And, speaking of bombs, if you could manage to trigger a mass of hafnium all at once or arrange for it to self-trigger in a chain reaction, you could make a variety of nifty weapons out of it, including a nuclear hand grenade with a yield of two kilotons. You could also build a fission-free trigger for a thermonuclear bomb which would evade all of the existing nonproliferation safeguards which are aimed at controlling access to fissile material. These are the kind of things that get the attention of folks in that big five-sided building in Arlington, Virginia.
And so it came to pass, in a Pentagon bent on “transformational technologies” and concerned with emerging threats from potential adversaries, that in May of 2003 a Hafnium Isomer Production Panel (HIPP) was assembled to draw up plans for bulk production of the substance, with visions of nuclear hand grenades, clean bunker-busting fusion bombs, and even hafnium-powered bombers floating before the eyes of the out of the box thinkers at DARPA, who envisioned a two-year budget of USD30 million for the project—military science marches into the future. What's wrong with this picture? Well, actually rather a lot of things.
But bad science, absurd economics, a nonexistent phenomenon, damning evaluations by panels of authorities, lack of applications, and ridiculous radiation risk in the extremely improbable event of success pose no insurmountable barriers to a government project once it gets up to speed, especially one in which the relationships between those providing the funding and its recipients are complicated and unseemingly cozy. It took an exposé in the Washington Post Magazine by the author and subsequent examination in Congress to finally drive a stake through this madness—maybe. As of the end of 2005, although DARPA was out of the hafnium business (at least publicly), there were rumours of continued funding thanks to a Congressional earmark in the Department of Energy budget.
This book is a well-researched and fascinating look inside the defence underworld where fringe science feeds on federal funds, and starkly demonstrates how weird and wasteful things can get when Pentagon bureaucrats disregard their own science advisors and substitute instinct and wishful thinking for the tedious, but ultimately reliable, scientific method. Many aspects of the story are also quite funny, although U.S. taxpayers who footed the bill for this madness may be less amused. The author has set up a Web site for the book, and Carl Collins, who conducted the original experiment with the dental X-ray and styrofoam cup which incited the mania has responded with his own, almost identical in appearance, riposte. If you're interested in more technical detail on the controversy than appears in Weinberg's book, the Physics Today article from May 2004 is an excellent place to start. The book contains a number of typographical and factual errors, none of which are significant to the story, but when the first line of the Author's Note uses “sited” when “cited” is intended, and in the next paragraph “wondered” instead of “wandered”, you have to—wonder.
It is sobering to realise that this folly took place entirely in the public view: in the open scientific literature, university labs, unclassified defence funding subject to Congressional oversight, and ultimately in the press, and yet over a period of years millions in taxpayer funds were squandered on nonsense. Just imagine what is going on in highly-classified “black” programs.
Adult mantis shrimp (Stomatapoda) live in burrows. The five anterior thoracic appendages are subchelate maxillipeds, and the abdomen bears pleopods and uropods. Some hatch as antizoeas: planktonic larvae that swim with five pairs of biramous thoracic appendages. These larvae gradually change into pseudozoeas, with subchelate maxillipeds and with four or five pairs of natatory pleopods. Other stomatopods hatch as pseudozoeas. There are no uropods in the larval stages. The lack of uropods and the form of the other appendages contrasts with the condition in decapod larvae. It seems improbable that stomatopod larvae could have evolved from ancestral forms corresponding to zoeas and megalopas, and I suggest that the Decapoda and the Stomatopoda acquired their larvae from different foreign sources.In addition to the zoö-jargon, another deterrent to reading this book is the cost: a list price of USD 109, quoted at Amazon.com at this writing at USD 85, which is a lot of money for a 260 page monograph, however superbly produced and notwithstanding its small potential audience; so fascinating and potentially significant is the content that one would happily part with USD 15 to read a PDF, but at prices like this one's curiosity becomes constrained by the countervailing virtue of parsimony. Still, if Williamson is right, some of the fundamental assumptions underlying our understanding of life on Earth for the last century and a half may be dead wrong, and if his conjecture stands the test of experiment, we may have at hand an understanding of mysteries such as the Cambrian explosion of animal body forms and the apparent “punctuated equilibria” in the fossil record. There is a Nobel Prize here for somebody who confirms that this supposition is correct. Lynn Margulis, whose own theory of the origin of eukaryotic cells by the incorporation of previously free-living organisms as endosymbionts, which is now becoming the consensus view, co-authors a foreword which endorses Williamson's somewhat similar view of larvae.
In this book, he presents these concepts to a popular audience, beginning by explaining the fundamentals of quantum mechanics and the principles of quantum computation, before moving on to the argument that the universe as a whole is a universal quantum computer whose future cannot be predicted by any simulation less complicated than the universe as a whole, nor any faster than the future actually evolves (a concept reminiscent of Stephen Wolfram's argument in A New Kind of Science [August 2002], but phrased in quantum mechanical rather than classical terms). He argues that all of the complexity we observe in the universe is the result of the universe performing a computation whose input is the random fluctuations created by quantum mechanics. But, unlike the proverbial monkeys banging on typewriters, the quantum mechanical primate fingers are, in effect, typing on the keys of a quantum computer which, like the cellular automata of Wolfram's book, has the capacity to generate extremely complex structures from very simple inputs. Why was the universe so simple shortly after the big bang? Because it hadn't had the time to compute very much structure. Why is the universe so complicated today? Because it's had sufficient time to perform 10122 logical operations up to the present.
I found this book, on the whole, a disappointment. Having read the technical papers cited above before opening it, I didn't expect to learn any additional details from a popularisation, but I did hope the author would provide a sense for how the field evolved and get a sense of where he saw this research programme going in the future and how it might (or might not) fit with other approaches to the unification of quantum mechanics and gravitation. There are some interesting anecdotes about the discovery of the links between quantum mechanics, thermodynamics, statistical mechanics, and information theory, and the personalities involved in that work, but one leaves the book without any sense for where future research might be going, nor how these theories might be tested by experiment in the near or even distant future. The level of the intended audience is difficult to discern. Unlike some popularisers of science, Lloyd does not shrink from using equations where they clarify physical relationships and even introduces and uses Dirac's “bra-ket” notation (for example, <φ|ψ>), yet almost everywhere he writes a number in scientific notation, he also gives it in the utterly meaningless form of (p. 165) “100 billion billion billion billion billion billion billion billion billion billion” (OK, I've done that myself, on one occasion, but I was having fun at the expense of a competitor). And finally, I find it dismaying that a popular science book by a prominent researcher published by a house as respectable as Knopf at a cover price of USD26 lacks an index—this is a fundamental added value that the reader deserves when parting with this much money (especially for a book of only 220 pages). If you know nothing about these topics, this volume will probably leave you only more confused, and possibly over-optimistic about the state of quantum computation. If you've followed the field reasonably closely, the author's professional publications (most available on-line), which are lucidly written and accessible to the non-specialist, may be more rewarding.
I remain dubious about grandiose claims for quantum computation, and nothing in this book dispelled my scepticism. From Democritus all the way to the present day, every single scientific theory which assumed the existence of a continuum has been proved wrong when experiments looked more closely at what was really going on. Yet quantum mechanics, albeit a statistical theory at the level of measurement, is completely deterministic and linear in the evolution of the wave function, with amplitudes given by continuous complex values which embody, theoretically, an infinite amount of information. Where is all this information stored? The Bekenstein bound gives an upper limit on the amount of information which can be represented in a given volume of spacetime, and that implies that even if the quantum state were stored nonlocally in the entire causally connected universe, the amount of information would be (albeit enormous), still finite. Extreme claims for quantum computation assume you can linearly superpose any number of wave functions and thus encode as much information as you like in a single computation. The entire history of science, and of quantum mechanics itself makes me doubt that this is so—I'll bet that we eventually find some inherent granularity in the precision of the wave function (perhaps round-off errors in the simulation we're living within, but let's not revisit that). This is not to say, nor do I mean to imply, that quantum computation will not work; indeed, it has already been demonstrated in proof of concept laboratory experiments, and it may well hold the potential of extending the growth of computational power after the pure scaling of classical computers runs into physical limits. But just as shrinking semiconductor devices is fundamentally constrained by the size of atoms, quantum computation may be limited by the ultimate precision of the discrete computational substrate of the universe which behaves, on the large scale, like a continuous wave function.
The failure of the Occupation could not, perhaps, have been averted in the very nature of the case. But it might have been mitigated. Its mitigation would have required the conquerors to do something they had never had to do in their history. They would have had to stop doing what they were doing and ask themselves some questions, hard questions, like, What is the German character? How did it get that way? What is wrong with its being that way? What way would be better, and what, if anything, could anybody do about it?Wise questions, indeed, for any conqueror of any country. The writing is so superb that you may find yourself re-reading paragraphs just to savour how they're constructed. It is also thought-provoking to ponder how many things, from the perspective of half a century later, the author got wrong. In his view the occupation of West Germany would fail to permanently implant democracy, that German re-militarisation and eventual aggression was almost certain unless blocked by force, and that the project of European unification was a pipe dream of idealists and doomed to failure. And yet, today, things seem to have turned out pretty well for Germany, the Germans, and their neighbours. The lesson of this may be that national character can be changed, but changing it is the work of generations, not a few years of military occupation. That is also something modern-day conquerors, especially Western societies with a short attention span, might want to bear in mind.
So long as spirituality was an idea, such as believing in God, it fell under religious control. However, if doctors redefined spirituality to mean a sensual phenomenon—a feeling—then doctors would control it, since feelings had long since passed into the medical profession's hands, the best example being unhappiness. Turning spirituality into a feeling would also help doctors square the phenomenon with their own ideology. If spirituality were redefined to mean a feeling rather than an idea, then doctors could group spirituality with all the other feelings, including unhappiness, thereby preserving their ideology's integrity. Spirituality, like unhappiness, would become a problem of neurotransmitters and a subclause of their ideology. (Page 226.)A reader opening this book is confronted with 293 pages of this. This paragraph appears in chapter nine, “The Last Battle”, which describes the Manichean struggle between doctors and organised religion in the 1990s for the custody of the souls of Americans, ending in a total rout of religion. Oh, you missed that? Me too. Mass medication with psychotropic drugs is a topic which cries out for a statistical examination of its public health dimensions, but Dworkin relates only anecdotes of individuals he has known personally, all of whose minds he seems to be able to read, diagnosing their true motivations which even they don't perceive, and discerning their true destiny in life, which he believes they are failing to follow due to medication for unhappiness. And if things weren't muddled enough, he drags in “alternative medicine” (the modern, polite term for what used to be called “quackery”) and ”obsessive exercise” as other sources of Artificial Happiness (which he capitalises everywhere), which is rather odd since he doesn't believe either works except through the placebo effect. Isn't it just a little bit possible that some of those people working out at the gym are doing so because it makes them feel better and likely to live longer? Dworkin tries to envision the future for the Happy American, decoupled from the traditional trajectory through life by the ability to experience chemically induced happiness at any stage. Here, he seems to simultaneously admire and ridicule the culture of the 1950s, of which his knowledge seems to be drawn from re-runs of “Leave it to Beaver”. In the conclusion, he modestly proposes a solution to the problem which requires completely restructuring medical education for general practitioners and redefining the mission of all organised religions. At least he doesn't seem to have a problem with self-esteem!
Now, this may seem mind-boggling enough, but from these premises, which it must be understood are accepted by most experts who study the origin of the universe, one can deduce some disturbing consequences which seem to be logically unavoidable.
- At the largest scale, the geometry of the universe is indistinguishable from Euclidean (flat), and the distribution of matter and energy within it is homogeneous and isotropic.
- The universe evolved from an extremely hot, dense, phase starting about 13.7 billion years ago from our point of observation, which resulted in the abundances of light elements observed today.
- The evidence of this event is imprinted on the cosmic background radiation which can presently be observed in the microwave frequency band. All large-scale structures in the universe grew from gravitational amplification of scale-independent quantum fluctuations in density.
- The flatness, homogeneity, and isotropy of the universe is best explained by a period of inflation shortly after the origin of the universe, which expanded a tiny region of space, smaller than a subatomic particle, to a volume much greater than the presently observable universe.
- Consequently, the universe we can observe today is bounded by a horizon, about forty billion light years away in every direction (greater than the 13.7 billion light years you might expect since the universe has been expanding since its origin), but the universe is much, much larger than what we can see; every year another light year comes into view in every direction.
Let me walk you through it here. We assume the universe is infinite and unbounded, which is the best estimate from precision cosmology. Then, within that universe, there will be an infinite number of observable regions, which we'll call O-regions, each defined by the volume from which an observer at the centre can have received light since the origin of the universe. Now, each O-region has a finite volume, and quantum mechanics tells us that within a finite volume there are a finite number of possible quantum states. This number, although huge (on the order of 1010123 for a region the size of the one we presently inhabit), is not infinite, so consequently, with an infinite number of O-regions, even if quantum mechanics specifies the initial conditions of every O-region completely at random and they evolve randomly with every quantum event thereafter, there are only a finite number of histories they can experience (around 1010150). Which means that, at this moment, in this universe (albeit not within our current observational horizon), invoking nothing as fuzzy, weird, or speculative as the multiple world interpretation of quantum mechanics, there are an infinite number of you reading these words scribbled by an infinite number of me. In the vast majority of our shared universes things continue much the same, but from time to time they d1v3r93 r4ndtx#e~—….
Reset . . . Snap back to universe of origin . . . Reloading initial vacuum parameters . . . Restoring simulation . . . Resuming from checkpoint.What was that? Nothing, I guess. Still, odd, that blip you feel occasionally. Anyway, here is a completely fascinating book by a physicist and cosmologist who is pioneering the ragged edge of what the hard evidence from the cosmos seems to be telling us about the apparently boundless universe we inhabit. What is remarkable about this model is how generic it is. If you accept the best currently available evidence for the geometry and composition of the universe in the large, and agree with the majority of scientists who study such matters how it came to be that way, then an infinite cosmos filled with observable regions of finite size and consequently limited diversity more or less follows inevitably, however weird it may seem to think of an infinity of yourself experiencing every possible history somewhere. Further, in an infinite universe, there are an infinite number of O-regions which contain every possible history consistent with the laws of quantum mechanics and the symmetries of our spacetime including those in which, as the author noted, perhaps using the phrase for the first time in the august pages of the Physical Review, “Elvis is still alive”. So generic is the prediction, there's no need to assume the correctness of speculative ideas in physics. The author provides a lukewarm endorsement of string theory and the “anthropic landscape” model, but is clear to distinguish its “multiverse” of distinct vacua with different moduli from our infinite universe with (as far as we know) a single, possibly evolving, vacuum state. But string theory could be completely wrong and the deductions from observational cosmology would still stand. For that matter, they are independent of the “eternal inflation” model the book describes in detail, since they rely only upon observables within the horizon of our single “pocket universe”. Although the evolution of the universe from shortly after the end of inflation (the moment we call the “big bang”) seems to be well understood, there are still deep mysteries associated with the moment of origin, and the ultimate fate of the universe remains an enigma. These questions are discussed in detail, and the author makes clear how speculative and tentative any discussion of such matters must be given our present state of knowledge. But we are uniquely fortunate to be living in the first time in all of history when these profound questions upon which humans have mused since antiquity have become topics of observational and experimental science, and a number of experiments now underway and expected in the next few years which bear upon them are described.
Curiously, the author consistently uses the word “google” for the number 10100. The correct name for this quantity, coined in 1938 by nine-year-old Milton Sirotta, is “googol”. Edward Kasner, young Milton's uncle, then defined “googolplex” as 1010100. “Google™” is an Internet search engine created by megalomaniac collectivists bent on monetising, without compensation, content created by others. The text is complemented by a number of delightful cartoons reminiscent of those penned by George Gamow, a physicist the author (and this reader) much admires.
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Jacqueline Wexler was such an administrator. Gracious and charming in public, accommodating and willing to compromise at meetings, she nevertheless had the steel-hard will and sharp intellect to drive the ICU's ramshackle collection of egos toward goals that she herself selected. Widely known as ‘Attila the Honey,’ Wexler was all sweetness and smiles on the outside, and ruthless determination within.After spending a third of page 70 on this paragraph, which makes my teeth ache just to re-read, the formidable Ms. Wexler walks off stage before the end of p. 71, never to re-appear. But fear not (or fear), there are many, many more such paragraphs in subsequent pages. An Earth-based space elevator, a science fiction staple, is central to the plot, and here Bova bungles the elementary science of such a structure in a laugh-out-loud chapter in which the three principal characters ride the elevator to a platform located at the low Earth orbit altitude of 500 kilometres. Upon arrival there, they find themselves weightless, while in reality the force of gravity would be imperceptibly less than on the surface of the Earth! Objects in orbit are weightless because their horizontal velocity cancels Earth's gravity, but a station at 500 kilometres is travelling only at the speed of the Earth's rotation, which is less than 1/16 of orbital velocity. The only place on a space elevator where weightlessness would be experienced is the portion where orbital velocity equals Earth's rotation rate, and that is at the anchor point at geosynchronous altitude. This is not a small detail; it is central to the physics, engineering, and economics of space elevators, and it figured prominently in Arthur C. Clarke's 1979 novel The Fountains of Paradise which is alluded to here on p. 140. Nor does Bova restrain himself from what is becoming a science fiction cliché of the first magnitude: “nano-magic”. This is my term for using the “nano” prefix the way bad fantasy authors use “magic”. For example, Lord Hacksalot draws his sword and cuts down a mighty oak tree with a single blow, smashing the wall of the evil prince's castle. The editor says, “Look, you can't cut down an oak tree with a single swing of a sword.” Author: “But it's a magic sword.” On p. 258 the principal character is traversing a tether between two parts of a ship in the asteroid belt which, for some reason, the author believes is filled with deadly radiation. “With nothing protecting him except the flimsy…suit, Bracknell felt like a turkey wrapped in a plastic bag inside a microwave oven. He knew that high-energy radiation was sleeting down on him from the pale, distant Sun and still-more-distant stars. He hoped that suit's radiation protection was as good as the manufacturer claimed.” Imaginary editor (who clearly never read this manuscript): “But the only thing which can shield you from heavy primary cosmic rays is mass, and lots of it. No ‘flimsy suit’ however it's made, can protect you against iron nuclei incoming near the speed of light.” Author: “But it's a nano suit!” Not only is the science wrong, the fiction is equally lame. Characters simply don't behave as people do in the real world, nor are events and their consequences plausible. We are expected to believe that the causes of and blame for a technological catastrophe which killed millions would be left to be decided by a criminal trial of a single individual in Ecuador without any independent investigation. Or that a conspiracy to cause said disaster involving a Japanese mega-corporation, two mass religious movements, rogue nanotechnologists, and numerous others could be organised, executed, and subsequently kept secret for a decade. The dénouement hinges on a coincidence so fantastically improbable that the plausibility of the plot would be improved were the direct intervention of God Almighty posited instead. Whatever became of Ben Bova, whose science was scientific and whose fiction was fun to read? It would be uncharitable to attribute this waste of ink and paper to age, as many science fictioneers with far more years on the clock have penned genuine classics. But look at this! Researching the author's biography, I discovered that in 1996, at the age of 64, he received a doctorate in education from California Coast University, a “distance learning” institution. Now, remember back when you were in engineering school struggling with thermogoddamics and fluid mechanics how you regarded the student body of the Ed school? Well, I always assumed it was a selection effect—those who can do, and those who can't…anyway, it never occurred to me that somewhere in that dark, lowering building they had a nano brain mushifier which turned the earnest students who wished to dedicate their careers to educating the next generation into the cognitively challenged classes they graduated. I used to look forward to reading anything by Ben Bova; I shall, however, forgo further works by the present Doctor of Education.
Finally, demand for fab labs as a research project, as a collection of capabilities, as a network of facilities, and even as a technological empowerment movement is growing beyond what can be handled by the initial collection of people and institutional partners that were involved in launching them. I/we welcome your thoughts on, and participation in, shaping their future operational, organizational, and technological form.Well, I am but a humble programmer, but here's how I'd go about it. First of all, I'd create a “Fabrication Trailer“ which could visit every community in the United States, Canada, and Mexico; I'd send it out on the road in every MIT vacation season to preach the evangel of “make” to every community it visited. In, say, one of eighty of such communities, one would find a person who dreamed of this happening in his or her lifetime who was empowered by seeing it happen; provide them a template which, by writing a cheque, can replicate the fab and watch it spread. And as it spreads, and creates wealth, it will spawn other Fab Labs. Then, after it's perfected in a couple of hundred North American copies, design a Fab Lab that fits into an ocean cargo container and can be shipped anywhere. If there isn't electricity and Internet connectivity, also deliver the diesel generator or solar panels and satellite dish. Drop these into places where they're most needed, along with a wonk who can bootstrap the locals into doing things with these tools which astound even those who created them. Humans are clever, tool-making primates; give us the tools to realise what we imagine and then stand back and watch what happens! The legacy media bombard us with conflict, murder, and mayhem. But the future is about creation and construction. What does An Army of Davids do when they turn their creativity and ingenuity toward creating solutions to problems perceived and addressed by individuals? Why, they'll call it a renaissance! And that's exactly what it will be. For more information, visit the Web site of The Center for Bits and Atoms at MIT, which the author directs. Fab Central provides links to Fab Labs around the world, the machines they use, and the open source software tools you can download and start using today.
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