Slashdot Mirror

An anonymous reader writes "Jacob Appelbaum, one of the security researchers who worked on the cold boot attacks to recover encryption keys from memory even after reboot, has announced the release of the complete source code for the utilities at The Last HOPE in New York City. The hope (obligatory pun) is that the release of these tools will help to improve awareness of this attack vector and enable the development of countermeasures and mitigation techniques in both software and hardware. The full research paper (PDF) is also available."

An anonymous reader writes "Jacob Appelbaum, one of the security researchers who worked on the cold boot attacks to recover encryption keys from memory even after reboot, has announced the release of the complete source code for the utilities at The Last HOPE in New York City. The hope (obligatory pun) is that the release of these tools will help to improve awareness of this attack vector and enable the development of countermeasures and mitigation techniques in both software and hardware. The full research paper (PDF) is also available."

schliz lets us know about research out of Princeton on melting away defects on microchips using a laser. The new technique, termed Self-Perfection by Liquefaction (SPEL), was published in the May 4 issue of Nature Nanotechnology. Researchers have traditionally approached chip defects by trying to improve the microchip fabrication process, but this eventually reaches fundamental physical limits to do with random behavior of electrons and photons. By focussing on fixing defects, the new method enables more precise shaping of microchip components, and engineers expect to dramatically improve chip quality without increasing fabrication cost. The before-and-after images are remarkable. Here's a diagram of how the process works.

schliz lets us know about research out of Princeton on melting away defects on microchips using a laser. The new technique, termed Self-Perfection by Liquefaction (SPEL), was published in the May 4 issue of Nature Nanotechnology. Researchers have traditionally approached chip defects by trying to improve the microchip fabrication process, but this eventually reaches fundamental physical limits to do with random behavior of electrons and photons. By focussing on fixing defects, the new method enables more precise shaping of microchip components, and engineers expect to dramatically improve chip quality without increasing fabrication cost. The before-and-after images are remarkable. Here's a diagram of how the process works.

schliz lets us know about research out of Princeton on melting away defects on microchips using a laser. The new technique, termed Self-Perfection by Liquefaction (SPEL), was published in the May 4 issue of Nature Nanotechnology. Researchers have traditionally approached chip defects by trying to improve the microchip fabrication process, but this eventually reaches fundamental physical limits to do with random behavior of electrons and photons. By focussing on fixing defects, the new method enables more precise shaping of microchip components, and engineers expect to dramatically improve chip quality without increasing fabrication cost. The before-and-after images are remarkable. Here's a diagram of how the process works.

An anonymous reader notes a Time.com profile of Princeton University music theorist Dmitri Tymoczko, who has applied some string-theory math to the study of music and found that all possible chordal music can be represented in a higher-dimensional space. His research was published last year in Science — it was the first paper on music theory they ever ran. The paper and background material, including movies, can be viewed at Tymoczko's site.

jerryasher recommends Paul Krugman's blog at the NYTimes, where he introduces a paper he wrote, The Theory of Interstellar Trade, with tongue very much in cheek. Some packrat academician was kind enough to send him a scan, because "back then academics did their work with typewriters, abacuses, and stone axes." Abstract: This paper extends interplanetary trade theory to an interstellar setting. It is chiefly concerned with the following question: how should interest rates on goods in transit be computed when the goods travel at close to the speed of light? This is a problem because the time taken in transit will appear less to an observer traveling with the goods than to a stationary observer. A solution is derived from economic theory, and two useless but true theorems are proved... This paper, then, is a serious analysis of a ridiculous subject, which is of course the opposite of what is usual in economics."

jcrouthamel writes "Contrary to popular assumption, DRAMs used in most modern computers retain their contents for seconds to minutes after power is lost, even at operating temperatures and even if removed from a motherboard. Although DRAMs become less reliable when they are not refreshed, they are not immediately erased, and their contents persist sufficiently for malicious (or forensic) acquisition of usable full-system memory images. We show that this phenomenon limits the ability of an operating system to protect cryptographic key material from an attacker with physical access. We use cold reboots to mount attacks on popular disk encryption systems — BitLocker, FileVault, dm-crypt, and TrueCrypt — using no special devices or materials. We experimentally characterize the extent and predictability of memory remanence and report that remanence times can be increased dramatically with simple techniques. We offer new algorithms for finding cryptographic keys in memory images and for correcting errors caused by bit decay. Though we discuss several strategies for partially mitigating these risks, we know of no simple remedy that would eliminate them."

jcrouthamel writes "Contrary to popular assumption, DRAMs used in most modern computers retain their contents for seconds to minutes after power is lost, even at operating temperatures and even if removed from a motherboard. Although DRAMs become less reliable when they are not refreshed, they are not immediately erased, and their contents persist sufficiently for malicious (or forensic) acquisition of usable full-system memory images. We show that this phenomenon limits the ability of an operating system to protect cryptographic key material from an attacker with physical access. We use cold reboots to mount attacks on popular disk encryption systems — BitLocker, FileVault, dm-crypt, and TrueCrypt — using no special devices or materials. We experimentally characterize the extent and predictability of memory remanence and report that remanence times can be increased dramatically with simple techniques. We offer new algorithms for finding cryptographic keys in memory images and for correcting errors caused by bit decay. Though we discuss several strategies for partially mitigating these risks, we know of no simple remedy that would eliminate them."

Hugh Pickens writes "Researchers are starting to discover the simple rules that allow swarms of thousands of relatively simple animals to form a collective brain able to make decisions and move like a single organism. To get a sense of swarms, Dr. Iain Couzin, a mathematical biologist at the Collective Animal Behaviour Laboratory at Princeton University, builds computer models of virtual swarms with thousands of individual agents that he can program to follow a few simple rules. Among the findings are that swarm behavior has patterns common to many different species, that just as liquid water can suddenly begin to boil, swarm behavior can also change abruptly in character, and that just a few leaders can guide a swarm effectively by creating a bias in the swarm's movement that steers it in a particular direction. The rules of the swarm may also apply to the cells inside our bodies and researchers are working with cancer biologists to discover the rules by which cancer cells work together to build tumors or migrate through tissues. Even brain cells may follow the same rules for collective behavior seen in locusts or fish. "How does your brain take this information and come to a collective decision about what you're seeing?" Dr. Couzin says. The answer, he suspects, may lie in our inner swarm."

Roland Piquepaille writes "Researchers at Princeton University are currently working on two projects to reduce jet travel's role in global warming. The first one, a major project funded by the U.S. Air Force with $7.5 million, is focused on developing computational models that accurately simulate the burning of jet fuel, a complex process not well understood today. The second one, funded by NetJets, a company providing business jets, will help to develop new jet fuels with near-zero net greenhouse gas emissions."

WBUR radio in Boston hosts a talk with two physicists, Alan Guth and Neil Turok, who represent, respectively, the consensus theory of the inflationary Big Bang and an upstart theory of the initiation of the universe in the collision of two three-dimensional "branes." Turok and Paul Steinhardt developed their "Ekpyrotic proposal" out of the mathematics behind string theory. In the audio the two physicists are perhaps more respectful of one another's views than the host wishes them to be. If you ignore the "let's you and him fight" framing of the debate, you will hear some interesting physics elucidated.

An anonymous reader writes "California Secretary of State Debra Bowen just announced details about the previously discussed 'top-to-bottom review' of almost all voting and counting systems used in the state. The team features big names in e-voting security: David Wagner, Matt Bishop, Ed Felten, Matt Blaze, and Harri Hursti, among others. Vendors have time to submit their machines including documentation and source code until July 1st or face severe restrictions, including decertification, for the 2008 elections. Scheduled to start next week, the review will include a red-team attack and going through the source code."

An anonymous reader wonders: "As music production tools, computers are everywhere from recording and mixing to publishing. What about computers as the sole musical instrument? DJing or just playing mp3s aside, we have improvisers and orchestras that treat a laptop as a full-flavored instrument. What's the most interesting laptop-only live act you have seen/heard?"

Warm John writes to mention a short article on Doctor Dobbs Journal about the Hack that couldn't be done. "Hacking a Diebold voting machine was the focus of Cigital's Gary McGraw's keynote at SD Best Practices. He discussed 'Security Analysis of the Diebold AccuVote-TS Voting Machine,' a paper released by Edward Felten, Ari Feldman, and Alex Halderman of the Princeton Center for Information Technology Policy. 'The paper details a simple method whereby the Princeton team was able to compromise the physical security of a Diebold voting machine, infecting it with a virus that could change voting results and spread by memory-card to other machines of the same type.'"

holy_calamity writes "Natual Language Programming researchers have developed a tool called Zeitgeist that can discover the meaning of new words for itself using Wikipedia. It looks for entries for words not in the WordNet database and works out their meaning by looking for known words linked to them. Development of the tool is focusing on using it to understand what bloggers (using slang and neologisms) are saying about companies' products."

Yesterday's post about an experiment using virtual worlds in an attempt to investigate the possibility of telepathic ability elicited nearly 400 comments from readers who had points to raise about experimental design, skepticism and credulity, and quantum mechanics. Read on for the Backslash summary of the discussion. Many readers' comments focused on the likelihood generally of a hitherto undetected, unexplainable mechanisim for mind-to-mind communication. Okian Warrior was one of a handful of readers who presented the argument that telepathy is unlikely to both exist and not be widely distributed among the population (or at least widely noticed). He writes:

"Instead of thinking about telepathy from a present perspective, as in 'we have/use it now,' consider it from an evolutionary standpoint.

Prehistoric humans with even a little telepathy would have enormous survival advantage. You'd be able to tell whether a predator was hiding behind the next rock, or whether it's an animal you're hunting for food. Or nothing, in which case you go off and hunt somewhere else.

In that case, natural selection would at the same time pressure animals, both predators and prey, to evolve to a form where they could block the effect so that their adversary (human or other) would have no idea where they were hiding.

Even if we can't tell where animals are hiding, even a little telepathy between humans could be used in group hunting and teaching offspring, or summoning help in a dire emergency. Even a brief feeling which influences your actions based on information from another human would confer enormous advantage.

Some people have reported that they have gotten 'feelings' that some loved one is in trouble, but frankly there is an overwhemingly enormous number of dire incidents throughout human history, each one of which would select for having the telepathic trait. Something as simple as children having the ability to alert their parents that they are in trouble would still confer enormous survival advantage.

From an evolutionary perspective, telepathy is a strong survival trait. Since we don't see it in the gene pool, it's unlikely that it's even possible."

Sesticulus raises a similar idea in a more compact form (it could be called the haven't been slapped" argument): "Invariably if I'm in a public place, there will be someone I find attractive and I will think "hey now". I've never had someone come up and slap me for thinking rude thoughts, so at the very least, women I find attractive, as a rule, do not have telepathy."

Reader seanellis writes with his prediction of the experiment's outcome:

"This experiment is very poorly controlled (who's to say that two people aren't also on the phone to one another, for example?), and some startlingly accurate correlations will occur. These will be debunked as the players come under scrutiny and the communication channels between players are detected.

However, after these have been removed, some correlations between players will still remain, below the level of statistical significance. Rather than being dismissed as insignificant, the woo-woo crowd will seize on these random correlations as 'proof of need of more research.'

This prediction is not the result of clairvoyance, rather it is an educated guess based on previous observations of this kind of setup."

Even more dubious, dpbsmith writes not to "discount the possibility of outright fraud," asking: "Are they planning to strip-search the participants for hidden transmitters and receivers? To test and debug the system, have they hired a couple of good magicians skilled at 'mentalist' acts, with a promise to pay them well for their time if they can successfully cheat? Or, like most scientists, are they just protecting against unconscious cheating by honest, good-faith participants?"

Further, dpbsmith is disappointed that the article "doesn't really discuss the possibility of conscious, clever cheating... or implies that it's impossible because, well, gee, the system is so high-tech. ... People have smuggled transmitters and receivers into casinos, where the management is probably far more savvy, cynical, and experienced at detecting cheating — and financially motivated to do so — than these scientists."

Reader mdkemp took issue with the implication in some readers' comments that this research was disreputable, pointing out that such research is also undertaken "at respected institutions," writing: "Research into this stuff isn't just for [k]ooks and crazies -- even Princeton has a small lab the goal of which is to experimentally gather a 'better understanding of the role of consciousness in the establishment of physical reality.' It's called the 'Princeton Engineering Anomalies Research' (PEAR) lab, and its web page can be found at princeton.edu/~pear."

This met with an acerbic response from reader aepervius, who calls PEAR "a laughing stock" with "bad hypotheses, bias, bad statistical analysis, etc." He points out critical reports critical of PEAR at skepdic and at the Skeptic Report.

Reader RexRhino expressed a common sentiment:

"Can someone tell me why this isn't as outrageous as spending tax money to research 'intelligent design'? I mean, there is no real scientific theory that describes how telepathy would work, and virtually all scientific evidence says that telepathy doesn't exist. Telepathy is pretty much to fortune telling what Intelligent Design is to creationism — turning superstition into pseudo-science to make it palatable to the modern audience. I realize that England doesn't have the same strict legal seperation between religion and state as other countries, but even if research into the mystical and supernatural isn't strictly illegal it is certainly a questionable use of taxpayer money, no? Why are people outraged over Intelligent Design but not this kind of stuff?"

Reader Pyromage provided one answer to that question, writing: "Because it's possible to devise an experiment that could provide scientific evidence in its favor. ... Such an experiment does not — even in theory — exist for [Intelligent Design]."

Other responses to the story show that at least many Slashdot readers are none too happy with research into telepathy being done with tax monies. A long thread on that very topic raised several good points:

Reader denoir kicked off this thread with a sarcastic call to "invest some more tax money on finding UFOs, the Loch Ness Monster and inventing the perpetuum mobile!"

To this, reader misleb responded "I'm always been surprised at the kind of reaction anything labeled 'paranormal' gets from rational people. Why exactly couldn't telepathy exist? Is there some fundamental law of nature which states that two people cannot communicate over a distance without sound or visual cues? Obviously, you'd have to identify a mechanism for the communications. If telepathy exists, it isn't magic. ... If you had told someone from 200 years ago that you could communicate with people across the globe in real-time, they'd probably think you were some kind of sorcerer. But since then we've discovered radio waves..."

Reader Alsee has a satirical reponse: "Why exactly couldn't invisible pink unicorns exist? Is there some fundamental law of nature which states that invisible pink unicorns cannot exist? Obviously, you'd have to identify a mechanism for invisible pink unicorns. If invisible pink unicorns exist, it isn't magic. ... Telepathy, invisible pink unicorns, elves, Zeus, telekenesis, Narnia, rain dances, flying potions, the Tooth Fairy, I'm always surprised at the reaction of rational people when they think that these things do not exist."

Wavicle offers another reason for the widespread skepticism about such research:

"While there may be some out there shouting paranormal things couldn't possibly exist, most of us are just pissed. Pissed that for every genuinely deluded person who believed they had witnessed a paranormal event, there are 20 others out there looking at using it to scam people out of money.

We have looked, and looked, and looked and come up empty handed EVERY TIME. The vast majority of the people who have said they had special powers were LIARS. The rest were just wrong. Nobody has ever passed muster. There are people out there doing genuine harm to others under the veil of paranormal abilities.

For example EVERY instance of 'psychic surgery' (where someone performs surgery with just their hands, leaving behind no scar or wound) has been a scam for money."

The same corner of the discussion led to a freewheeling exchange of comments on scientific credulity and exotic explanations for telepathy involving quantum mechanics.

Reader kfg writes "I am, at least nominally, a physicist. You wouldn't catch me saying any such thing as 'telepathy can't exist.' However, you first need to demonstrate that it does exist if you expect me to do work on that basis. If and when that happens I will not posit any 'paranormal' event, but rather that there is a quite normal mechanism at work. Then it will be my job to find it, because, at the moment, there is no valid theory of such a mechanism. ('Well, maybe it could be ...' is not a theory.) A theory is model that is concordence with data. ... Which brings us back to the need to show me it exists, particularly since everything I have ever seen so far indicates that the world works just spiffily in accordance with the rules of chance."

Reader Thing 1 asserts "if the human brain works on quantum principles, and one of those principles is communication at a distance, then that tells me that telepathy is possible," and mentions the phenomenon of entanglement as a mechanism for instantaneous communication: "Through a process, two electrons become 'entangled,' and when separated experimentally up to 10 km, when the spin on one is changed, the spin on the other is changed immediately--with no speed-of-light delay."

To this, reader aardvarkjoe responds that "The problem is that, in these 'entanglement experiments,' no information is being transmitted from the first site to the second. By measuring the state of the first electron, you can instantaneously affect the state of the second electron — but according to all of the current theories, there is no way to actually use that to communicate. (If that sounds weird ... it is. Quantum theory is rather unintuitive.)"

Several readers' comments were not about the experiment at issue in this case, but rather about the James Randi Educational Foundation prize I mentioned. Two comments in particular sum up many of the others: Reader nido calls Randi a fraud with an agenda" and says this is how Randi is viewed by "people who can," to which Mr2001 responds "Well, there's also the slight difference that he has facts on his side. None of these so-called 'people who can' have ever been able to demonstrate their alleged abilities under controlled conditions. Until they can do that, they're nothing more than 'people who lie to others,' or at best, 'people who lie to themselves.' ... It's a pity that there's no evidence that these experiences actually took place in reality, not just in the participants' imaginations, don't you think? Because if there were evidence, someone would be a million dollars richer."

Many thanks to everyone who took part in the discussion, in particular those readers whose comments are quoted above.

Yesterday's post about a Wall Street Journal article critiquing the current allocation of distributed number-crunching projects drew a huge range of comments, some favoring the proposition that seemingly quixotic distributed-computing endeavors (specifically, the alien-hunting SETI@home project) were diverting resources better spent on closer-to-home, pragmatic research, such as cancer or climate prediction, or perhaps best never converted to electricity in the first place. Read on for the Backslash summary of the conversation.

SETI@home is probably the best-known distributed computing project in the world. Several readers questioned not just the efficiency of spending computer cycles sifting for alien communications with SETI@home, but whether this search is based on a sensible idea in the first place. Reader TheSync, pointing to a Princeton research paper, offered an interesting case for another approach to seeking alien intelligence:

"Radio SETI is really a waste of time. Optical SETI is the logical choice because

1. Visible light-emitting devices are smaller and lighter than microwave or radio-emitting devices.
2. Visible light-emitting devices produce higher bandwidths and can consequently send information much faster.
3. Interference from natural sources of microwaves is more common than from visible sources.
4. Naturally occurring nanosecond pulses of light are mostly likely nonexistent, although there are all kinds of radio signals that could be similar to intentional SETI transmissions. Thus Optical SETI does not require grid computing to find signals.
5. Exact frequencies of light are not required, as nanosecond unfiltered light pulses would still outshine the planet's star by over 30 times.

Optical SETI detection out to 100 light-years is doable today, with a bit more work optical SETI out to 1,000 light-years is possible."

More generally, reader theCat says he gave up on SETI@home "at the exact moment when I recognized that radio broadcast, even assuming other life forms discover it, is just a quick stepping stone toward more efficient/direct means of distribution, like wires or fiber. Or drums. Or pheremones. Or telepathy. ... SETI has always barked up the wrong tree. Not because there are no intelligent races out there — and I really do suspect there are — but because if they are intelligent in a way that we would even recognize then they've moved on to other forms of communication, or settled into a fine state of just dealing with every day as it comes and not worring about events in their version of Iraq."

Whether or not their approaches are optimal, reader exp(pi*sqrt(163)) defended the more esoteric distributed computing projects like SETI on a pessimistic ground, writing that after two years in computational chemistry for what is now GlaxoSmithKline, "I became strongly convinced that computers do not find cures for diseases - or even give you much understanding of illnesses. Molecular modeling is so far from being able to model in vivo molecules that it's practically worthless. ... [W]e already know that trials at this stage are poorly correlated with actual drug usefulness, simulations are just as much a waste of resources as SETI. ... It seems to me that molecular modeling is actually one of those hard 'macho' (but ultimately pointless) projects that gets funding because to criticize it makes you seem anti-drug, anti-therapy and anti-human-progress. (I'm not saying people shouldn't try to model molecules. This is a great blue-sky goal. But people who are trying to find drugs or therapies shouldn't be wasting their time with such techniques.)"

A persistent suggestion that SETI@home and similar projects were wasteful for failing to deliver enough tangible benefits to present-day society provoked several readers to defend the importance of voluntary participation; Chrisq compared the cycles spent on distributed science to donations to charities, writing "I don't like the way that some animal charities get more money than children's charities. Obviously the people making donations disagree. The point is the donor decides — if someone is giving something away, then they decide."

One reader suggested sarcastically "You know what's a waste of time? Gardening. You spend all this time and energy just to raise a few tomatoes that could have been bought at the store for cheap. ... People should stop gardening and focus their time and energy on solving global warming, but I don't presume to tell anyone what they should be doing with their time."

Another offered a tongue-in-cheek response providing a few facetious parallels: "It's a waste that people use their cars to go see a movie when they could be delivering food to the homeless shelter. It's a waste that people are storing ice cream in the fridge when they could be storing donated blood plasma."

Many readers, though, provided examples of projects that they consider worthy their computing efforts, either instead of or in addition to SETI.

"Personally, I always felt SETI was not very philanthropic — more like an amusing experiment in grid computing," says tedgyz, and suggests that grid.org to users who would like to spend some cycles on medical research. "They provide great features for managing all your computers that run the grid projects. You can even choose which research to participate in. And, to satiate a geek's lust for power, they have rankings for your aggregate compute time."

Perhaps the WSJ article draws a false dichotomy, however: one reader asked "Does Carl realize that it's possible to crunch more than one project at a time with BOINC? Right now I'm attached SETI, Einstein, Rosetta & LHC. It works on one for a bit and then will switch to another for a bit. And so what if SETI@home will never find anything, it's a cool looking screen saver!"

(Another reader reported dissatisfaction with BOINC: "I upgraded from the old SETI@Home client to BOINC when it became available - but the BOINC client required too much effort on my part and was getting in my way. ... I'm donating my CPU cycles to some altruistic cause, I don't want to have to RTFM. I just want to install and forget. For this reason I miss the old SETI client, and have, as a result, now stopped contributing.")

Eventual benefits aside, some readers doubt that the medical research projects' goals parallel their own: one reader writes "... I won't do the ones for the drug companies. My grandfather was denied a chance at surviving cancer in the 60's, but the big drug companies went to the FDA against the doctor who had a good success rate for curing colon/stomach cancer because one of the chemicals used was not FDA approved. The big drug companies are not looking for cures, they are looking for drugs to sell."

In response to fears that medical-research undertakings would exploit their volunteers' contributions to the data crunching, Lars Westergren several times pointed out that the Stanford-based Folding@home protein-folding project, at least, has committed itself to sharing the data generated by its volunteers, citing the project's promise (found in its FAQ) that

"We will not sell the data or make any money off of it. ... Moreover, we will make the data available for others to use. In particular, the results from Folding@home will be made available on several levels. Most importantly, analysis of the simulations will be submitted to scientific journals for publication, and these journal articles will be posted on the web page after publication. Next, after publication of these scientific articles which analyze the data, the raw data of the folding runs will be available for everyone, including other researchers, here on this web site."

In another comment, Westergren argued that "[e]ven if this worst-case scenario did happen [of donated cycles being turned into secret-formula drugs], the cycles donated would not be wasted. You would have helped advance human scientific research, and the medicines created would still be saving peoples' lives."

Along similar lines, as reader lhbtubajon puts it, "[i]f a company starts manufacturing a product so expensive that they cannot make a profit on it, they will soon cease to exist, as will the beneficial product they hoped to give to the world."

Whatever the ends to which the data is eventually put, many readers raised another objection: power consumption. Shisha outlines the inherent uncertainty of whether cycle-donation makes sense:

"All those free computer cycles are not that free. Modern CPUs consume more electricity to do more work and someone has to pay the electricity bills. Busy CPUs need more cooling and fans that run at full throttle for a year do wear out and fail (and you risk burning some important component, even if the PC is designed to shut down when it detects overheating). That's simply because desktop PCs are desktop PCs and not workstations and the assumption is that the fans will have to run at full throttle for maybe half an hour at a time. The real costs are not easy to work out, but it might, just might be more efficient to donate the money to charity."

(This analysis, according to another reader, "[underestimates] the quality of a desktop PC. I ran SETI and climateprediction.net for about 4 years straight on a dual G4 PowerMac. Ran like a champ. 100% CPU for months straight. Never had a problem. They can take abuse.")

Placing the WSJ article into context, FlynnMP3 pointed out that author Gomes isn't trying to force anyone to change their computing behavior, and suggested an argument that SETI@home might specifically hold greater worth than can be divined from its success rate so far:

This is merely an opinion piece. It's easy to take the pragmatic road and donate personal computing cycles to cancer research or something as equally earth based, citing return-of-results arguments.

I postulate that the returns for finding out if there is intelligent life in outer space has greater implications for the world's population. Not immediate concerns mind you (unless something extraordinary happens), but the practical usage will eventually seep out of the acedemic and scientific circles and benefit the population in ways that we cannot possibly imagine."

More succintly, another reader's understatement may explain just why so many people are happy to donate a few watts in the quest for E.T. life: "Odd, I can think of few things that would change life on earth more than a verifiable intelligent signal from outer space. This story reminds me to go download SETI@home again."

Thanks to the readers whose comments helped inform this discussion, especially those quoted above:

• exp(pi*sqrt(163))
• theCat
• tedgyz
• FlynnMP3
• BadAnalogyGuy
• flafish
• LarsWestergren
• FiveDollarYoBet
• gzur
• Shisha
• York the Mysterious
• Hythlodaeus

dido writes "Princeton University geology Professor Kenneth Deffeyes has been studying world petroleum production data and has come to the conclusion that the world hit peak oil last December 16, 2005. If he is correct, total world oil production will never surpass what was produced last December. From the article: 'Compared to 2004, world oil production was up 0.8 percent in 2005, nowhere near enough to compensate for a demand rise of roughly 3 percent. The high prices did not bring much additional oil out of the ground. Most oil-producing countries are in decline."

Slashback tonight with updates and clarifications on recent Slashdot stories (and story arcs), including a downright Operatic end to Jon S. von Tetzchner's cross-oceanic attempt (or was that just in fun?), the status of post-death email privacy, minimizing the dangers of RFID passports, and more - read on for the details.

Actually, it's taking tests that reduces IQ. The guys at Mind Hacks have dissected the widely reported story that 'email destroys the mind faster than marijuana' [Posted on Slashdot a few days ago -- T.] and found that it is more spin than science. The results show simply that people do worse at IQ tests when distracted, although Hewlett-Packard are not releasing details of the experiment, so others cannot even evaluate if the research is sound. The use of psychobabble for marketing marches on.

One day this will all be commemorated as ... an opera. GreyPoopon writes "It looks like Jon's attempt at swimming the Atlantic has ended in early failure. Taking the blame once again is is PR Manager, Eskil Sivertsen. The raft he was using was somehow punctured this morning, and Jon had to abondon his trek to perform a heroic rescue. Perhaps someone should take on the task of sending our downtrodden adventurer a cup of Mom's hot chocolate."

PCP theorem simplified, still way over my head. Stridar writes "Sanjeev Arora's proof of the PCP theorem was a great acheivement. This theorem, a reduction of NP to PCP, allowed for many striking results on the difficulty of finding approximate solutions to NP-Hard problems. However, his original proof is long and technical, focusing on the arithmetization of booelan formulas. It has long been an open problem to simplify this result. Now Irit Dinur , a mathematician at the Hebrew University, has given a purely combinatorial proof of the PCP theorem, in her exciting paper "The PCP Theorem by Gap Amplification" ."

I think several other things end at death, too. microbee writes "The Register reports that Yahoo has complied with a court order to give a dead soldier's email account to his parents. It's not clear to me from the news whether they got direct access to the actual mail box, or just hard copy of those emails. If the former, it's a bit funny to read "the family complain they have only got emails received by Justin, not those he wrote." People have to wonder whether their privacy ends at death."

Haven't they ever seen The Killing Fields? valdean writes "Following up on past Slashdot stories, Wired News reports that the State Department is now considering adding a password to the new RFID passports, in response to 'criticism from computer security professionals and civil libertarians.' According to the article, 'The data... would be locked and unavailable to any reader that doesn't know a secret key or password to unlock the data. To obtain the key, a passport officer would need to physically scan the machine-readable text that's printed on the passport page beneath the photo... The reader would then hash the data to create a unique key that could be used to authenticate the reader and unlock the data on the RFID chip.'"

Anything with LEDs in it makes me happy. HunterD writes "Apparently a company called DigitalBlue purchased the rights to the Intel Play series, which included the Intel QX3 microscope. Well, DigitalBlue has released an upgrade called the QX5 that features an Ultrabright LED, a better camera, and a number of other upgrades."

Slashback tonight with updates and clarifications on recent Slashdot stories (and story arcs), including a downright Operatic end to Jon S. von Tetzchner's cross-oceanic attempt (or was that just in fun?), the status of post-death email privacy, minimizing the dangers of RFID passports, and more - read on for the details.

Actually, it's taking tests that reduces IQ. The guys at Mind Hacks have dissected the widely reported story that 'email destroys the mind faster than marijuana' [Posted on Slashdot a few days ago -- T.] and found that it is more spin than science. The results show simply that people do worse at IQ tests when distracted, although Hewlett-Packard are not releasing details of the experiment, so others cannot even evaluate if the research is sound. The use of psychobabble for marketing marches on.

One day this will all be commemorated as ... an opera. GreyPoopon writes "It looks like Jon's attempt at swimming the Atlantic has ended in early failure. Taking the blame once again is is PR Manager, Eskil Sivertsen. The raft he was using was somehow punctured this morning, and Jon had to abondon his trek to perform a heroic rescue. Perhaps someone should take on the task of sending our downtrodden adventurer a cup of Mom's hot chocolate."

PCP theorem simplified, still way over my head. Stridar writes "Sanjeev Arora's proof of the PCP theorem was a great acheivement. This theorem, a reduction of NP to PCP, allowed for many striking results on the difficulty of finding approximate solutions to NP-Hard problems. However, his original proof is long and technical, focusing on the arithmetization of booelan formulas. It has long been an open problem to simplify this result. Now Irit Dinur , a mathematician at the Hebrew University, has given a purely combinatorial proof of the PCP theorem, in her exciting paper "The PCP Theorem by Gap Amplification" ."

I think several other things end at death, too. microbee writes "The Register reports that Yahoo has complied with a court order to give a dead soldier's email account to his parents. It's not clear to me from the news whether they got direct access to the actual mail box, or just hard copy of those emails. If the former, it's a bit funny to read "the family complain they have only got emails received by Justin, not those he wrote." People have to wonder whether their privacy ends at death."

Haven't they ever seen The Killing Fields? valdean writes "Following up on past Slashdot stories, Wired News reports that the State Department is now considering adding a password to the new RFID passports, in response to 'criticism from computer security professionals and civil libertarians.' According to the article, 'The data... would be locked and unavailable to any reader that doesn't know a secret key or password to unlock the data. To obtain the key, a passport officer would need to physically scan the machine-readable text that's printed on the passport page beneath the photo... The reader would then hash the data to create a unique key that could be used to authenticate the reader and unlock the data on the RFID chip.'"

Anything with LEDs in it makes me happy. HunterD writes "Apparently a company called DigitalBlue purchased the rights to the Intel Play series, which included the Intel QX3 microscope. Well, DigitalBlue has released an upgrade called the QX5 that features an Ultrabright LED, a better camera, and a number of other upgrades."

soren.harward writes "The New Scientist has an article about TinyP2P, the world's smallest P2P app. It's 15 lines of Python code brought to us by Edward Felten, CS Professor at Princeton and outspoken supporter of the digital rights the Slashdot community holds so dear. He wrote the program as a proof-of-concept that P2P apps are really easy to write, don't have to be complicated, and thus banning them (a la the INDUCE Act) is pointless and silly."

ibi writes "On the heels of the PriceWaterHouseCoopers report about the threat of SoftPats to innovation, comes a book by a Harvard B School and Brandeis economics professor about how broken the patent system is in general. In short their book argues that the entire system is a (stunned silence) scam. (They actually call it 'a creator of litigation and uncertainty that threatens the innovation process itself' instead but that's cause you don't get tenure for using words like 'scam'.) Interesting to see that its gotten so bad that a professor of Investment Banking at Harvard even thinks something oughta be done."

b00le writes "Several sources carry versions of this story about the diary of Johanna Fantova who shared much of the last years of Einstein's life (and cut his hair) and witnessed his kindness and poltical activisim. The diary does not seem to have been translated from the German yet, but the site has extracts. According to this, Fantova tried to publish the diaries herself and of course failed to find an agent."

dfab writes "The first experimental proof of Einstein's general theory has been revamped to discover planets around distant stars. Yesterday astronomers announced that a new technique called gravitational microlensing has found a star that hosts a roughly Jupiter-sized planet in a roughly Jupiter-sized orbit by observing its effect on the light from a bright star beyond that planetary system. See the NASA report or the gory details."

Anonymous Coward writes "NY Times today has an essay about a map of the entire universe produced by two Princeton astronomers using a variety of data including the Sloan Digital Sky Survey. Its view begins with the Earth at the bottom and extends back almost to the Big Bang at the top, including such objects as the Sloan Great Wall, 1.37 billion light-years long. The map can be found here."

Roland Piquepaille writes "Last week, a study released by Princeton University said that geoscientists have captured images of the interior of the Earth by using techniques similar to body scanning by physicians. This study also revealed in-depth structures which might explain how our planet is changing -- and aging. They studied more than 86,000 earthquakes which occurred since 1964. And they found 32 "mantle plumes" which are believed to cause island chains, such as the Hawaiian Islands and Iceland. They have been conjectured thirty years ago, but this is the first visual evidence they exist. This overview contains more details and references, including a rendering of mantle plumes in action."

doom writes "The general concept of Robert Ehrlich's book is absolutely superb: Nine Crazy Ideas in Science: A Few Might Even Be True. Here, someone with a technical background (Ehrlich is a physics prof at George Mason) and an open mind investigates in detail a number of 'crazy' ideas, to see if there's anything to them. The execution of the idea is not quite as superb, but Robert Ehrlich has done better at this difficult job than anyone else I know of. This book is highly recommend as a good review of the evidence on some scientific controversies." Read on for doom's review, in which he goes through Erlich's nine-part list, but mind the spoilers. Nine Crazy Ideas in Science: A Few Might Even Be True author Robert Ehrlich pages 244 publisher Princeton University Press rating Great idea, very good execution reviewer doom ISBN 0691070016 summary A scientist evaluates some "crazy ideas"

Here's the deck of nine ideas under consideration:

• More Guns Mean Less Crime
• AIDS is Not Caused by HIV
• Sun Exposure is Beneficial
• Low Doses of Nuclear Radiation Are Beneficial
• The Solar System Has Two Suns
• Oil, Coal, and Gas Have Abiogenic Origins
• Time Travel is Possible
• Faster-than-Light Particles Exist
• There Was No Big Bang

The game here is that Ehrlich is not telling you in advance what his conclusions were. He says he's tried to keep an open mind, and claims that during his investigations he actually changed his mind about some things (though he never says about what exactly).

So in this review I'm going to give you generalities first, and bury "the butler did it" type information after a SPOILER warning.

One of the problems with the execution of this work is that you can pretty often tell when Ehrlich is enthusiastic about an idea just from his general tone as he writes about it... and conversely, in retrospect I think I should've been able to spot when he disagreed with, because the writing in those chapters was a little confusing.

Part of his schtick is that at the end of each chapter he rates the idea on a scale of 0 to 4 "cuckoos". Oddly enough I often find that I strongly disagree with his cuckoo ratings even just based on the evidence that he presents. But the absolute magnitude of my disagreements are typically no more than a single "cuckoo".

I was worried about some of his evaluation criteria (see the introduction available on-line as a sample chapter), because he includes several points that strike me as fairly dicey: "Who proposed the idea?"; "How attached is the proposer to the idea?" and "Does the proposer have an agenda?" These all relate to judging the person rather than the idea itself. (Consider that "consider the source" and "ad hominem argument" are pretty much the same as far as logic goes.) But he does clearly understand that these are just rules of thumb, and I note with some amusement that he doesn't resort to these particular rules anywhere in the later chapters. He's more interested in the logic of the arguments, which is as it should be.

I could bring up lots of quibbles (and I probably will after the spoiler warning), but overall I found this to be a great breezy read. I learned quite a bit from it. While nothing here made me do a reversal of my beliefs, I was often surprised that the evidence for something was stronger or weaker than I'd supposed.

Here we have an educated, astute, person doing a relatively independent review of some controversial, interesting technical subjects. Why aren't there more books like this?

Ah, but at least there's one more! I see that a sequel has just come out: Eight Preposterous Propositions: From the Genetics of Homosexuality to the Benefits of Global Warming . I bet I'll be submitting a review on that one shortly ...

Anyway, now into the nitty gritty. Here's your SPOILER WARNING. Skip the following if you want to play the "guess where he's going" game with this book. Let's take it chapter by chapter:

More Guns Mean Less Crime

I'm a "right to bear arms" kind of guy myself, and I was surprised that the data doesn't seem to support private ownership of guns as a crime deterrent. Ehrlich argues persuasively that the statistical evidence for this is very weak. I appreciate the fact that Ehrlich concludes that both the pro and anti gun sides are nuts: he rates them 3 and 2 "cuckoos" respectively, where a 3 is "almost certainly not true" and 2 is "very likely not true."

But here, we come to my first strong disagreement with him. If the effects aren't strong enough to measure, why the asymmetry in the "cuckoo" rating for the pro and anti side? I might rate them both at a 2 myself.

AIDS is Not Caused by HIV

I've had the impression that the the Duesberg hypothesis was pretty screwy, but I was willing to tentatively consider it might have something of value. For example, what about the possibility that multiple diseases are now being diagnosed incorrectly as one single syndrome "HIV"?

But Ehrlich's analysis satisfies me that there's not much of scientific value in Duesberg's ideas at all. I don't argue with his 3 cuckoo rating (but I wouldn't blame you if you thought it deserved the full 4).

Sun Exposure is Beneficial

Ehrlich concludes that this looks fairly plausible, and gives it a 0 cuckoo rating, pretty much as I would have expected. Many people might find this surprising though, certainly the popular impression these days seems to be that sunlight is deadly.

Low Doses of Nuclear Radiation Are Beneficial

Here, Ehrlich lays out the case for "radiation hormesis", and I really don't think this is that fantastic a notion (the difference between a poison and a medicine is often a matter of dosage, why wouldn't this be true of radiation?). But radiation is so demonized in the popular imagination that "radiation is good for you" comes off an insane joke. Ehrlich takes it seriously, and essentially concludes that while there are reasons for suspecting that this effect exists, it hasn't been entirely established. And here we have one of my quibbles: he awards it 1 cuckoo, which translates to "probably not true, but who knows". But there is no reason for saying it's probably not true. If something is not crazy, just not established, I would be inclined to award it "0 cuckoos," aka "Why not?"

The Solar System Has Two Suns

This is the "Nemesis" hypothesis, which it will probably come as no surprise is rated at 2 cuckoos. The short version of the story: originally they looked at part of the extinction record, and it looked like there was a definite cycle. But if you look at the whole record it doesn't seem to be there.

Oil, Coal, and Gas Have Abiogenic Origins

This is subject that's been of some interest to me, ever since I heard Thomas Gold give a talk on this idea about a decade ago. It turns out that this is now looking much less like "an intriguing possibility" and much more like a truth awaiting a few funerals before it will be declared established. The odds are good that "fossil fuels" don't actually come from fossils, rather they're from hydrocarbons that pre-existed the formation of the earth, which means we're probably not going to run out of them. (So that means we can ignore those environmental wackos, right? Nope: imagine what happens to the atmosphere if we keep ramping up the rate at which we burn this stuff.)

Ehrlich rates this at 0 cuckoos, but maybe he should have invented a "-1 cuckoo" for this one.

Time Travel is Possible

2 cuckoos: no surprises.

Faster-than-Light Particles Exist

Ehrlich mentions in his introduction in the interests of "full disclosure" that he's actually strongly attached to one of the ideas discussed here (the existence of tachyons), but by the time I'd gotten to that chapter I'd entirely forgotten about this, and I was disappointed to realize that he was being an advocate, not an independent reviewer (it includes a picture of him wearing a "no tardy-centrism" T-shirt).

Ehrlich rates this at 0 cuckoos, but come on. Even just based on the write-up he presents, it's a clear 1 cuckoo.

There Was No Big Bang

Clocks in at 3 cuckoos, as you might expect.

You can purchase Nine Crazy Ideas in Science: A Few Might Even Be True from bn.com. Slashdot welcomes readers' book reviews -- to see your own review here, read the book review guidelines, then visit the submission page.

doom writes "The general concept of Robert Ehrlich's book is absolutely superb: Nine Crazy Ideas in Science: A Few Might Even Be True. Here, someone with a technical background (Ehrlich is a physics prof at George Mason) and an open mind investigates in detail a number of 'crazy' ideas, to see if there's anything to them. The execution of the idea is not quite as superb, but Robert Ehrlich has done better at this difficult job than anyone else I know of. This book is highly recommend as a good review of the evidence on some scientific controversies." Read on for doom's review, in which he goes through Erlich's nine-part list, but mind the spoilers. Nine Crazy Ideas in Science: A Few Might Even Be True author Robert Ehrlich pages 244 publisher Princeton University Press rating Great idea, very good execution reviewer doom ISBN 0691070016 summary A scientist evaluates some "crazy ideas"

Here's the deck of nine ideas under consideration:

• More Guns Mean Less Crime
• AIDS is Not Caused by HIV
• Sun Exposure is Beneficial
• Low Doses of Nuclear Radiation Are Beneficial
• The Solar System Has Two Suns
• Oil, Coal, and Gas Have Abiogenic Origins
• Time Travel is Possible
• Faster-than-Light Particles Exist
• There Was No Big Bang

The game here is that Ehrlich is not telling you in advance what his conclusions were. He says he's tried to keep an open mind, and claims that during his investigations he actually changed his mind about some things (though he never says about what exactly).

So in this review I'm going to give you generalities first, and bury "the butler did it" type information after a SPOILER warning.

One of the problems with the execution of this work is that you can pretty often tell when Ehrlich is enthusiastic about an idea just from his general tone as he writes about it... and conversely, in retrospect I think I should've been able to spot when he disagreed with, because the writing in those chapters was a little confusing.

Part of his schtick is that at the end of each chapter he rates the idea on a scale of 0 to 4 "cuckoos". Oddly enough I often find that I strongly disagree with his cuckoo ratings even just based on the evidence that he presents. But the absolute magnitude of my disagreements are typically no more than a single "cuckoo".

I was worried about some of his evaluation criteria (see the introduction available on-line as a sample chapter), because he includes several points that strike me as fairly dicey: "Who proposed the idea?"; "How attached is the proposer to the idea?" and "Does the proposer have an agenda?" These all relate to judging the person rather than the idea itself. (Consider that "consider the source" and "ad hominem argument" are pretty much the same as far as logic goes.) But he does clearly understand that these are just rules of thumb, and I note with some amusement that he doesn't resort to these particular rules anywhere in the later chapters. He's more interested in the logic of the arguments, which is as it should be.

I could bring up lots of quibbles (and I probably will after the spoiler warning), but overall I found this to be a great breezy read. I learned quite a bit from it. While nothing here made me do a reversal of my beliefs, I was often surprised that the evidence for something was stronger or weaker than I'd supposed.

Here we have an educated, astute, person doing a relatively independent review of some controversial, interesting technical subjects. Why aren't there more books like this?

Ah, but at least there's one more! I see that a sequel has just come out: Eight Preposterous Propositions: From the Genetics of Homosexuality to the Benefits of Global Warming . I bet I'll be submitting a review on that one shortly ...

Anyway, now into the nitty gritty. Here's your SPOILER WARNING. Skip the following if you want to play the "guess where he's going" game with this book. Let's take it chapter by chapter:

More Guns Mean Less Crime

I'm a "right to bear arms" kind of guy myself, and I was surprised that the data doesn't seem to support private ownership of guns as a crime deterrent. Ehrlich argues persuasively that the statistical evidence for this is very weak. I appreciate the fact that Ehrlich concludes that both the pro and anti gun sides are nuts: he rates them 3 and 2 "cuckoos" respectively, where a 3 is "almost certainly not true" and 2 is "very likely not true."

But here, we come to my first strong disagreement with him. If the effects aren't strong enough to measure, why the asymmetry in the "cuckoo" rating for the pro and anti side? I might rate them both at a 2 myself.

AIDS is Not Caused by HIV

I've had the impression that the the Duesberg hypothesis was pretty screwy, but I was willing to tentatively consider it might have something of value. For example, what about the possibility that multiple diseases are now being diagnosed incorrectly as one single syndrome "HIV"?

But Ehrlich's analysis satisfies me that there's not much of scientific value in Duesberg's ideas at all. I don't argue with his 3 cuckoo rating (but I wouldn't blame you if you thought it deserved the full 4).

Sun Exposure is Beneficial

Ehrlich concludes that this looks fairly plausible, and gives it a 0 cuckoo rating, pretty much as I would have expected. Many people might find this surprising though, certainly the popular impression these days seems to be that sunlight is deadly.

Low Doses of Nuclear Radiation Are Beneficial

Here, Ehrlich lays out the case for "radiation hormesis", and I really don't think this is that fantastic a notion (the difference between a poison and a medicine is often a matter of dosage, why wouldn't this be true of radiation?). But radiation is so demonized in the popular imagination that "radiation is good for you" comes off an insane joke. Ehrlich takes it seriously, and essentially concludes that while there are reasons for suspecting that this effect exists, it hasn't been entirely established. And here we have one of my quibbles: he awards it 1 cuckoo, which translates to "probably not true, but who knows". But there is no reason for saying it's probably not true. If something is not crazy, just not established, I would be inclined to award it "0 cuckoos," aka "Why not?"

The Solar System Has Two Suns

This is the "Nemesis" hypothesis, which it will probably come as no surprise is rated at 2 cuckoos. The short version of the story: originally they looked at part of the extinction record, and it looked like there was a definite cycle. But if you look at the whole record it doesn't seem to be there.

Oil, Coal, and Gas Have Abiogenic Origins

This is subject that's been of some interest to me, ever since I heard Thomas Gold give a talk on this idea about a decade ago. It turns out that this is now looking much less like "an intriguing possibility" and much more like a truth awaiting a few funerals before it will be declared established. The odds are good that "fossil fuels" don't actually come from fossils, rather they're from hydrocarbons that pre-existed the formation of the earth, which means we're probably not going to run out of them. (So that means we can ignore those environmental wackos, right? Nope: imagine what happens to the atmosphere if we keep ramping up the rate at which we burn this stuff.)

Ehrlich rates this at 0 cuckoos, but maybe he should have invented a "-1 cuckoo" for this one.

Time Travel is Possible

2 cuckoos: no surprises.

Faster-than-Light Particles Exist

Ehrlich mentions in his introduction in the interests of "full disclosure" that he's actually strongly attached to one of the ideas discussed here (the existence of tachyons), but by the time I'd gotten to that chapter I'd entirely forgotten about this, and I was disappointed to realize that he was being an advocate, not an independent reviewer (it includes a picture of him wearing a "no tardy-centrism" T-shirt).

Ehrlich rates this at 0 cuckoos, but come on. Even just based on the write-up he presents, it's a clear 1 cuckoo.

There Was No Big Bang

Clocks in at 3 cuckoos, as you might expect.

You can purchase Nine Crazy Ideas in Science: A Few Might Even Be True from bn.com. Slashdot welcomes readers' book reviews -- to see your own review here, read the book review guidelines, then visit the submission page.

Tau Zero writes "The BBC reports that a group of scientists (including Stephen Forrest) have discovered a new use for the anti-static plastic film polyethylenedioxythiophene: storing up to a gigabyte per cubic centimeter. The storage technology resembles an old fuse-link PROM; a bit of polymer between two electrodes conducts electricity when new, but a strong pulse turns it into an open circuit. The polymer is already cheap, and read/write speeds are claimed to be good. The researchers predict that this could be made into working devices in a few years (no word on whether this means devices in the laboratory or retail packages)." Update: 11/29 16:34 GMT by CN : Whoops, we already reported this earlier, and I was fooled into thinking it new by the BBC. Given the slump of news due to the holiday weekend, it's still worth mulling over, though.

Slashback tonight with more on whether Princeton really hates open source (hint: No.), the outcome of Australia's mp3s4free.net case, the Farscape-to-return saga, and other updates to recent and semi-recent Slashdot stories. Read on for the details.

"Frankly, sometimes the guy just ... says things." An anonymous reader writes "In a recent Slashdot article, it was reported that Howard Strauss, manager of technology and outreach at Princeton University, wrote a paper bashing the open source community. Princeton has now publicly denounced this article and stated its official policy towards open source."

(I don't know that it's fair to call Princeton's response a denunciation, but the school makes clear that a) Strauss was speaking on his own, not on behalf of the university and b) that Princeton uses, likes, supports, and develops plenty of open source software.)

Oh, they're only votes! tklancer writes "Remember the voting machine failures earlier this month? Well, now Fairfax County is going to investigate the failures in (hopefully) a bit more depth. Now if they'd only start talking about adding a paper trail ..."

Lik-Sang and Microsoft, back on merely uneasy terms. D4rkUnderlord writes "For those who forgot, Lik-Sang was taken down last year by Microsoft, Sony and Nintendo for selling "Modification devices" (see CNN.com December 16, 2002). Lee sent us this article coming from a HK newspaper: [QUOTE] Have Found this tuesday in the South China Morning Post. Microsoft always get what it want Lee [/QUOTE] Read it here (scan of newspaper article). Note that lik-sang.com has been sold and put under new management last year, so nothing of these trials can or will affect lik-sang.com"

I wish people'd been this worked up about Northern Exposure. calethix writes "There's a news post over at Save Farscape regarding the return of Farscape as a 4 hour mini-series. There aren't a lot of details yet but it's supposed to air next year and has been confirmed by a solid source."

Much as I loathe and mock online petitions ... Hey, if it worked for Farscape, a television show with Alf at the wheel ... Dagrush writes "As you know, there was a slashdot story about how Saruman wa being cut from LotR:RotK. Now there is a petition to put the 7 minutes of Saruman back in the film. You can go here to add your name to the petition, as well as you comments. There are over 17000 signatures right now."

Follow the money, just don't say "terror." Best ID Ever! writes "CNN is reporting that the Policy Analysis Market is set to return, albeit without futures on 'violent events,' and without DARPA or other government involvement. As you may remember, the former DARPA project, under retired admiral John Poindexter's office, was shut down after being roundly condemned by politicians on both sides, leading to Poindexter's resignation. There seems to be a lot of interest in such 'information markets' lately, from the recently announced MIT Market to the long running Iowa Electronic Markets."

Next time they get tied to dingos. An anonymous reader writes "Australian University students Peter Tran, Charles Kok Hau Ng, and Tommy Le avoided jail when they were sentenced today. Charged with Internet piracy for running a file trade site the three copped a plea to reduced charges. Tran gets an 18-month suspended sentence and a $5,000 (Australian) fine. Ng got an 18-month suspended sentence and 200 hours community service. Le was only given community service. Needless to say the Australian record industry is complaining the three should do time, which could have meant five years behind bars. The judge ruled prison was not called for."

djeaux writes "In the November 4 issue of Syllabus, Howard Strauss, manager of technology strategy and outreach at Princeton University, presents 'The FREE, 0% APR, Better Sex, No Effort Diet' in which he scattershoots at open source software. The Nigerian scam is part of his imagery, leading to a great quote: 'While you are installing your free open source software you may want to write Mrs. Ahmed a check. Her $8.5 million will help pay for the real cost of that free software.' Elsewhere, Strauss describes the open source community as 'a smattering of teenagers too young to work at Redmond, hackers, virus creators, and a menagerie of others with whom you will feel great pride in entrusting your IT infrastructure.'" Not everyone at Princeton agrees.

djeaux writes "In the November 4 issue of Syllabus, Howard Strauss, manager of technology strategy and outreach at Princeton University, presents 'The FREE, 0% APR, Better Sex, No Effort Diet' in which he scattershoots at open source software. The Nigerian scam is part of his imagery, leading to a great quote: 'While you are installing your free open source software you may want to write Mrs. Ahmed a check. Her $8.5 million will help pay for the real cost of that free software.' Elsewhere, Strauss describes the open source community as 'a smattering of teenagers too young to work at Redmond, hackers, virus creators, and a menagerie of others with whom you will feel great pride in entrusting your IT infrastructure.'" Not everyone at Princeton agrees.

djeaux writes "In the November 4 issue of Syllabus, Howard Strauss, manager of technology strategy and outreach at Princeton University, presents 'The FREE, 0% APR, Better Sex, No Effort Diet' in which he scattershoots at open source software. The Nigerian scam is part of his imagery, leading to a great quote: 'While you are installing your free open source software you may want to write Mrs. Ahmed a check. Her $8.5 million will help pay for the real cost of that free software.' Elsewhere, Strauss describes the open source community as 'a smattering of teenagers too young to work at Redmond, hackers, virus creators, and a menagerie of others with whom you will feel great pride in entrusting your IT infrastructure.'" Not everyone at Princeton agrees.

djeaux writes "In the November 4 issue of Syllabus, Howard Strauss, manager of technology strategy and outreach at Princeton University, presents 'The FREE, 0% APR, Better Sex, No Effort Diet' in which he scattershoots at open source software. The Nigerian scam is part of his imagery, leading to a great quote: 'While you are installing your free open source software you may want to write Mrs. Ahmed a check. Her $8.5 million will help pay for the real cost of that free software.' Elsewhere, Strauss describes the open source community as 'a smattering of teenagers too young to work at Redmond, hackers, virus creators, and a menagerie of others with whom you will feel great pride in entrusting your IT infrastructure.'" Not everyone at Princeton agrees.

The Importance of writes "As noted previously, a couple of weeks ago BMG released a new CD by Anthony Hamilton that included DRM. Slashdot readers speculated that the system wouldn't work. Now there is a report proving it doesn't work by Alex Halderman, a graduate student at Princeton's computer science department and the author of an earlier, definitive report (PDF, HTML version) on first generation CD copy protection. Famed computer scientist Ed Felten asks: "Is this the end of the road for CD copy protection?" His answer? "It ought to be.""

The Importance of writes "As noted previously, a couple of weeks ago BMG released a new CD by Anthony Hamilton that included DRM. Slashdot readers speculated that the system wouldn't work. Now there is a report proving it doesn't work by Alex Halderman, a graduate student at Princeton's computer science department and the author of an earlier, definitive report (PDF, HTML version) on first generation CD copy protection. Famed computer scientist Ed Felten asks: "Is this the end of the road for CD copy protection?" His answer? "It ought to be.""

Thanks to Planet Half-Life for their interview with Marc Laidlaw, writer on both the Half-Life games, who answers questions about Gordon Freeman's (and other less cipher-like NPCs') genesis, suggesting "...some of the character creation process is very analytical... but a large part of it remains intuitive", and goes on to point an admonitory finger at Joseph Campbell's Hero With A Thousand Faces: "I have great respect for Campbell, who never intended to create a boilerplate for insecure storytellers, but the mythological hero has been done to death." Above all, Laidlaw hopes you have a good time come Half-Life 2's September 29th appearance, saying: "I think the only sector of the audience likely to feel any disappointment are those fans who adored long-jumping between bits of floating rock on Xen."

deliasee writes "Researchers at Princeton have announced the results of a brain imaging study showing that a battle between different logical and emotional sectors of the brain results in a decision. The study used a game theory scenario to investigate why people often make irrational decisions that actually go against their most logical best interests - as in, I would like to get _some_ money as opposed to _no_ money."

Some legal issues, some technical issues, a little personal insight... This is what Professor Felten gives us here. Some excellent questions rose to the top in this interview, and the answers are similarly thoughtful. Major thanks go out to Professor Felten, also to the many Slashdot people who submitted great questions!

1) From your discussions with them...
by burgburgburg

...do you perceive that legislators are aware of the extraordinarily broad negative implications of these new telecommunications laws that are being proposed/enacted?

Also, if you are aware of it, have the hardware/software manufacturers who will be affected joined together to fight these laws, or has it flown under their radar?

Prof. Felten:

Let me take the second part of the question first. Yes, various manufacturers have opposed the bills. The Consumer Electronics Association, for example, has opposed them. The MPAA has now changed the bills in an attempt to make some of the big manufacturers happier.

As to the first part of the question:

No, I don't think the legislators who support these bills really understand the harm they would do. In my experience, if you can explain to them what the problem is, they will want to do the right thing. (They may not kill a bad bill entirely, but they will at least try to amend it to fix problems.) The hard part is to get their attention, and then to explain the problem in a manner that non-geeks can understand.

The underlying problem, I think, is that geeks think about technology in a different way than non-geeks do. The differences have sunk deeply into the basic worldviews of the two communities, so that their consequences seem to be a matter of common sense to each group. This is why it often looks to each group as if members of the other group are idiots.

Here's an example. Geeks think of networks as being like the Internet: composed of semi-independent interoperating parts, and built in layers. Non-geeks tend to think of networks as being like the old-time telephone monopoly: centrally organized and managed, non-layered, and provided by a single company. It's not that they don't know that the world has changed -- if you ask them what the Internet is like, they'll say that it's decentralized and layered. But the *implications* of those changes haven't sunk deeply into their brains, so they tend not to see problems that are obvious to geeks.

Geeks will look at proposed network regulation and immediately ask "How will this affect interoperability?" or "Is this consistent with the end-to-end principle?" but non-geeks will look at the same proposal and think of different questions. They know what interoperability is, but it's just not at the front of their minds.

2) What sort of positive legislation?
by Viperion

Dr. Felten, do you have a suggestion as to what sort of legislation could be introduced that would soothe the minds of reactionary lawmakers while preserving the rights that we currently enjoy?

Prof. Felten:

Intellectual property policy is in a crisis right now, caused by widespread infringement and the excesses of the legal backlash against it. The biggest problem is hasty legislation that makes the crisis worse by overregulating legitimate behavior without preventing infringement. Obviously, it would be a positive step to repeal some of the bad laws that are already on the books. Part of the problem is a mindset that no matter what the problem is, the solution must be legislative.

But you asked about positive legislative steps, which is a harder question. The holy grail here is a non-harmful proposal that reassures legislators about the continued viability of the music and movie industries.

If you want positive legislation in this area, the best hope is a compulsory license, which would charge all users of the Net a small, mandatory fee. In exchange for this, it would become totally legal to distribute and use any audio and video content on the Net. The revenue from the fees would be split up among the creators according to a formula, based on how many times each work was downloaded or played. If you do the math, the fees can be pretty small while still replacing the revenue the music and movie industries would otherwise lose.

This is a controversial proposal. It does have drawbacks, and I'm not quite endorsing it at this point. But if you want to cut the Gordian knot and end the piracy wars, a compulsory license is one way to do so.

3) Network Identity
by Rick.C

One of the rumored new restrictions is that you may not mask the identity of a network connection. In your opinion, does this refer to the identity of each machine or the identity of the subscriber (who might be responsible for several machines behind a firewall, e.g.)?

In other words, are we talking about "people" or "boxes"?

Prof. Felten:

Some proposed bills would make it a crime to "conceal the place of origin or destination of a communication" from "any communication provider." I'm not sure whether "place" means a geographic location (such as my house) or a network address (such as my IP address) or an identifier (such as a DNS address or email address, either of which might correspond to a person). As far as I know, supporters of these bills haven't said clearly which meaning they intend.

Under any of these three readings, such a ban would cause huge problems. Lots of ordinary security and privacy measures, such as firewalls, VPNs, encrypted tunnels, and various proxies conceal the origin or destination of messages, either to protect privacy or as a side-effect of what they do.

4) Prohibition of what got us here?
by Xesdeeni

Do I completely misunderstand the scope of the DMCA, or would it have actually prohibited the actions of clone manufacturers, starting with Compaq, when they reverse-engineered the IBM PC BIOS in 1984?

It seems this simple fact alone would highlight the ludicrous nature of a law which would prohibit precisely the actions that provided the current state of the industry.

Prof. Felten:

The effect of the DMCA on reverse engineering is complicated. The DMCA does not flatly ban reverse engineering, but if you have to circumvent a technical protection measure in order to do your reverse engineering, then the DMCA will be an issue. The DMCA does have a limited safe harbor for reverse engineering, but it has been widely criticized as too narrow.

I hate to dodge your question, but I'm not really qualified to say whether what the clone makers did would be legal under 2003 law.

5) Signal to Noise
by sterno

One of the problems I see with efforts to try to get the DMCA and similar legislation revoked and prevented in the future, is a matter of signal to noise. Most voters don't care about the DMCA or even know about it, and those who do usually have to worry about more important priorities like the state of the economy or the war in Iraq. So, my question is, how can we possibly make the DMCA and its kin important issues to our legislators? Sure, I can write them, but if they are given the choice of voting for the DMCA and getting some campaign money, or voting against and pleasing a handful of constituents, which will they choose?

It's unlikely that the handful of consitutents is going to vote against the candidate purely because of their DMCA stance. Personally, I'm very against the DMCA but when the election time comes around, I'm not voting for the anti-DMCA candidate, I'm voting for the guy who's going to fix the economy and patch our international relationships. So how can somebody like myself really get their voice heard by the right people when the threat of "voting for the other candidate" isn't credible?

Prof. Felten:

In the short run, I think it's more productive to convince legislators than to threaten them. As you say, there won't be many single-issue DMCA voters.

But even if technological freedom issues like the DMCA aren't the only factor in a voting decision, they still might tip the balance for some voters in some races. Even that is enough to make a difference. Legislators do seem to care what their constituents think, and they do seem to have a fear of doing something that looks stupid afterward.

In the long run, I hope the public comes to see how technological improvement flows from the freedom of technologists to learn and create.

If average voters view censorship of technologists in the same way they view other forms of censorship, we'll be in much better shape.

6) DMCA and EUCD
by Brian Blessed

In your opinion, do residents of Europe and other US-friendly (business-wise) areas have a hope of avoiding being adversely affected by the DMCA (or superDMCA) or its foreign implementations (e.g. EUCD) and is technological civil disobedience the best form of activism to follow?

Prof. Felten:

There is still hope in Europe, but they seem to be heading for the same kind of regulatory regime we see here in the U.S. Parts of the U.S. government have been working hard for years to export the U.S. version of intellectual property law to the rest of the world. All indications are that Europe will follow us down this path.

7) Our position in the world
by TooTechy

Do you see this new legislation altering our ability to work remotely? Will these restrictions place undue hardship on US workers when compared with facilities in other countries? Is it likely that other countries will evolve faster technologically as a result of these draconian measures?

Prof. Felten:

The new regulations on technology will impose a drag on our technological capabilities, and hence on our productivity. If other countries are foolish enough to impose the same regulations on their citizens (and it seems that many will be), then we'll come out even from a competitive standpoint. More importantly, we'll all be worse off than we could have been had we all followed better policies.

8) Strategy
by Meat Blaster

Our current methods of informing the public and the government about the evils of the DMCA seem to be reactive and passive -- defending a lawsuit, writing public responses to the librarian of Congress periodically about the DMCA, setting up resources where the public if they were so inclined could stop by and learn about the problem.

Do you feel that it would be a good time for a shift in strategy towards more active measures such as forming a group to lobby representatives directly, issuing mailings about the DMCA particularly to those whose representatives support legislation like the DMCA/UCITA/SSSCA, or beginning a television ad campaign? Such an endeavor is bound to cost a bit, but I can't help but feel that particularly with 2004 coming up having a bit of organized PR on our side of the debate would be quite helpful.

Prof. Felten:

I agree that positive action is important. I view this as a two-track process.

The first track is the one you suggest, of building up lobbying muscle to challenge harmful regulations. This is challenging, given who is on the other side, and given the tendency of our opponents to buy off important players with special-purpose exceptions to their legal regulations. (For example, the DMCA has special carve-outs for ISPs and device makers.) We're really just starting in this area, but we need to remember how much progress has been made since the passage of the DMCA, which met very little organized resistance at the time.

The second track is to get better at explaining ourselves and at persuading people that they should support our positions. Especially, we need to do a better job of finding folks out there who are our natural allies, and convincing them to join us on these issues, even if we disagree about some other issues.

An example: auto parts manufacturers are worried by recent DMCA developments, such as the case where Lexmark has successfully (so far) used the DMCA against a maker of replacement parts for Lexmark printers. Auto parts manufacturers are worried that the DMCA mindset, which treats unauthorized analysis and interoperation as improper, will leak into their world.

9) Roadblocks to IP protections?
by Xesdeeni

Doesn't the DMCA prohibit a company from investigating a violation of their IP if the violation exists on the other side of encryption?

For example, if company M utilized a software algorithm (putting aside the argument about software patents for the moment) inside an encrypted data stream (audio file, video file, etc.) that was actually patented by company A, wouldn't it be a violation of the DMCA for company A to investigate this violation of their patent rights? And wouldn't any evidence they uncovered in violation of the DMCA be inadmissible if they tried to enforce their patent rights against company M?

Prof. Felten:

This sounds like a likely DMCA violation, but you'll have to consult your lawyer to be sure.

This is just one instance of a more general problem. Laws like the DMCA that limit the flow of information will inevitably make it harder to find out about certain types of misbehavior. Sometimes the misbehavior will be patent infringement. Sometimes it will be a manufacturer misleading their customers about the quality of their product.

We value free speech because vigorous public discussion benefits everybody, though many of those benefits are subtle and indirect. So far, the legal system has not fully realized that speech about technology needs to be valued as highly as speech about other topics. I think the law will eventually catch on, as it becomes clearer to the average person that their experience of the world, and their interaction with the world, is mediated by technology.

10) Tell me...
by Dicky

For the love of God, man, why???

Or to put it slightly less sillily, what was (and is!) your motivation for getting involved in this side of the Computer Science world, say, as opposed to the nice safe, clean theoretical stuff?

Prof. Felten:

I'm not entirely sure myself. Here's the best answer I can manage:

In deciding what to work on, I really just follow my own quirky sense of what is interesting and important. If others find the things I do interesting and important, that's a lucky accident.

But that can't really be the answer to your question, because many of my colleagues follow the same rule, and they end up working on different sorts of things than I do. So I must have a different sense of taste than they do, but I'm not sure why.

The answer doesn't lie in my personal life. When I leave work, I am not at all a rebel or nonconformist. I have a stable, boring, happy suburban life, which I wouldn't change for anything.

I should also point out that I do some work that fits into the traditional academic computer science framework. But you won't read about that on Slashdot.

An anonymous reader submits "Fred von Lohmann, lead intellectual property lawyer at the Electronic Frontier Foundation, wrote an op-ed in the Daily Princetonian urging compulsory licensing of copyrighted music. The system would allow internet users to copy music freely and legally, in exchange for a flat monthly fee to be shared by artists and record labels. He says schools like Princeton might be a good place to test the approach."

pazu13 writes "The RIAA is taking action against college "Napster networks". It's suing four network operators, two at Renssalaer Polytechnic Institute, one at Princeton University, and one at Michigan Technological University. Don't know where this is going, but I'm afraid it might get significantly harder for humble college students such as myself to sample an artist's music before going out and buying a disc... my speed across the network is ridiculously faster than when I try to access outside sources."

Princeton Computer Science Professor Edward W. Felten has been mentioned and quoted frequently on Slashdot, usually about DMCA matters and, more recently, about new state laws that may make it illegal to use "unapproved" networking devices, VPNs or firewalls with your home or office Internet connection. Please avoid questions that can be answered by reading the pages linked to here or with a bit of Google research. We'll post Prof. Felten's answers to 10 of the highest-moderated questions as soon as he has time to answer them.

Slashback this evening brings updates on social networks, Audioscrobbler, the Social Security-number security breach at the University of Texas at Austin, and more. Read on for the details.

Why meet people in real life? Roland Piquepaille writes "I wrote [Saturday] a column about social-network mapping tools mentioned by Slashdot. Slashdot readers sent me many comments and e-mails about other visualization tools. Here are these new tools, in no particular order: email constellations, Apache Agora, NetVis Module, EtherApe, inGridX, NameBase's Proximity Search, Surf3D Pro and the dazzling KartOO. Finally, a reader talked about another kind of tools, the Visual Thesaurus. This web tool is not about social mapping, but it shows graphical connections between words. In this previous column, "The Visual Thesaurus: What Does it Show About Thanksgiving?," I already explored this very funny tool. Check this new story for more the details about all these tools."

Update: 03/19 00:34 GMT by T : Directly related: Josh Tyler writes "Related to a recent Slashdot posting on social networks is this paper on automatically discovering communities based on email data, just published by our group at HP Labs. We find that simple communication data is enough to identify communities, both formal and informal, and possibly even to identify the leaders of these groups."

Speaking of online community ... TGK writes "Audioscrobbler (which many of us visited the first time it was posted here) has a new site up, and most importantly, new plugins for XMMS and Winamp 3."

From the site, a capsule description of what Audioscrobbler does: "It grows to know what music you like by monitoring what songs you play on your computer. From this information you can discover other users that share some or all of your taste in music."

Feedback is always cool. An anonymous reader writes: "Sudhakar Govindavajhala, co-author of the paper referenced by the Saturday Slashdot article 'Using Memory Errors to Attack a Virtual Machine,' has responded to many of your [Slashdot readers'] questions and comments. His commentary is located at his Princeton CS website."

Another reason that Social Security isn't. GregAllen writes "Remember the recent case of SSN data theft at The University of Texas? A student has turned himself in. In his confession he says that he acted alone, and had no intention to disseminate the information. Maybe this will convince them to stop using SSNs for student IDs." Bonker also points out that "Salon is carrying an AP article that's a followup to the story a few days ago about the mass of Social Security Numbers stolen from University of Texas. Christopher Andrew Phillips is described as a 'fine young man who has never before been in trouble with the law'. Apparently he wrote a program 'to access a university Web site that tracks employees who attend training classes'. Whether or not this was done for illegitimate purposes remains to be seen. As a former UTA student, I'm glad my SSN is no longer in danger!"

What's the state of the device? An anonymous reader writes "N-Philes.com did another State of the GBA Industry Article and Roundtable. Here is the Industry Article, and here is the Roundtable"

Update: 03/19 00:34 GMT by T : And one more presroi writes "Just one week after even slashdot has noticed the new 2.2.24 linux kernel, Alan Cox has announced a new version due to a security issue found in 2.2 as well as in the 2.4 branch. I hope that we all were to lazy to upgrade from 2.2.X to .24 until now :)"

gillus writes "A very cool scientific paper from Appel and Govindavajhala that explains how virtual machines like java or .Net can be exploited. How? Quite simple, bomb your DRAM chip with X-rays... or more simply with 50-watt spotlight, as the authors demonstrate. Definitively worth a read!"

gillus writes "A very cool scientific paper from Appel and Govindavajhala that explains how virtual machines like java or .Net can be exploited. How? Quite simple, bomb your DRAM chip with X-rays... or more simply with 50-watt spotlight, as the authors demonstrate. Definitively worth a read!"

malpern writes "I've written a review of upcoming virtual keyboards based on published reports. There are pictures, descriptions, and details for each of the four major manufactures (Virtual Devices, Developer VKB, Canesta, and Senseboard Technologies)."

Stella Daily writes "While the man (or woman) in the white coat no longer has the godlike status he once enjoyed, we still regard the doctors of the world as, perhaps, something more than human. We entrust them with our lives and with the lives of family members; we tell them things we would never tell anyone else. And when they fail, we are often severe in our punishments: multimillion-dollar lawsuits, lost licenses, and most of all, the cloud of public disapproval that follows a physician who has made a particularly well-publicized mistake, sometimes for the rest of his life." Stella's review continues below. Complications: A Surgeon's Notes on an Imperfect Science author Atul Gawande pages 269 publisher Metropolitan Books rating 10 reviewer Stella Daily ISBN 0805063196 summary What happens when humans do an inhumanly difficult job.

Complications is a look at the medical profession from the inside -- written by surgical resident Atul Gawande, it is a frank, thought-provoking commentary on what happens when fallible human beings do a job that requires infallibility. In its chapters, he reveals that doctors make mistakes more often than most of us think -- and that while there are bad doctors, the more usual case is the good doctor having a bad day, or the problem for which all the training in the world would not have been enough.

Gawande is refreshingly honest about the limitations of medicine and of how much doctors, despite years of training, do not know. Witness the titles of the three sections of the book: "Fallibility," "Mystery," and "Uncertainty." He shows us myriad facts and stories that seem designed to make us lose confidence in our physicians. The study that showed that a doctor's confidence in her diagnosis was not related to whether the diagnosis was correct. The colleagues who chose to remain silent when a well-known surgeon began to show signs of incompetence, choosing instead to quietly redirect patients to other doctors when possible. The studies that show that autopsies reveal misdiagnoses in between thirty and forty percent of cases. Yet Gawande suggests physicians are doing the best they can: given the complexity of the human body, the short amount of time they often have to make decisions, and a host of diseases, injuries, and conditions that mimic each other, it is a titanic task we ask of them. Often a doctor has little more than her intuition to go on; sometimes that intuition can result in messy complications, but just as often it results in a spectacular save.

Complications tackles other issues as well: How do we reconcile the needs of patients to have experienced hands performing procedures to the needs of physicians who must teach the procedure to residents so that a new generation of doctors will be able to perform it? What does a doctor do with a patient whose symptoms show no discernible cause? How much say should a patient have in his or her medical treatment? As Gawande describes, until quite recently, the answer was "none -- doctor knows best." But whose body is it, anyway? While the reader might find himself, as I did, indignantly reacting with, "Of course I should be able to decide what happens to me!" Gawande raises an important point. Sometimes a patient really is not in the best position to decide, as when a patient in pain demands the treatment that will alleviate her pain now but cause her serious trouble down the road, unable to consider anything but how much it hurts now. The doctor's dilemma of when to step in is one I do not envy, and one Gawande describes poignantly.

While you will pick up Complications for the ideas and questions it raises, it is the stories Gawande tells, and the polished magazine writer's style with which he tells them, that will make you unable to put it down. Whether it's the television anchorwoman who couldn't stop blushing, the star orthopedic surgeon who inexplicably began doing shoddy work that hurt more than it helped, or the beautiful young event planner who was saved from a deadly infection by Gawande's lucky guess, the stories are about fascinating human beings, and Gawande tells them with riveting language.

If Complications has a weakness, it is that the chapters sometimes seem disjointed, without adequate transition between them. In the acknowledgments, the reader learns that the book originated from several essays Gawande wrote for The New Yorker. When the book is considered as a collection of essays rather than a unified whole, the lack of continuity is not a problem, and even without knowing this, it is still a more than worthwhile read.

Complications is about, as its subtitle says, an imperfect science, but not just any imperfect science. Arguably more than any other field, medicine's failures are held under a microscope and second-guessed ad nauseam; we expect our doctors to be perfect, and when they are not, our disapproval can be severe indeed. While Complications may shock you with its admissions of how deep the errors run, in the end it will give you a better understanding of what it is to be a human being doing an inhumanly difficult job.

You can purchase Complications from bn.com. Slashdot welcomes readers' book reviews -- to see your own review here, read the book review guidelines, then visit the submission page.

SEWilco writes "A few years ago the life forms around deep-ocean thermal vents were a surprise. Now ancient bacteria alive in rock 2 miles down have been found. The story is in the San Francisco Chronicle. It is also at Nature.Com, but that server is already rejecting connects. Other bacteria survived frozen in the pressures of an ocean 100 miles deep. This increases the known limits of where life can exist on any planet. Thomas Gold undoubtedly is not surprised at hot, deep bacteria living on hydrogen."

fieldmethods asks: "One area where Open Source and Free Software doesn't seem to have really taken off is Natural Language Processing (using computers to deal with human languages). There are a few projects that are open source, such as Festival (a speech synth system, now ported to Java), NLTK, a general-purpose NLP system in Python, and the Linguana project, a Perl implementation of a semantic network not unlike Wordnet (but better). Generally, though, there doesn't seem to be a lot of Open Source momentum behind the field as a whole. It's a challenging, difficult field that would benefit from collaboration, especially given the potential of replacing static corpora with on-the-fly corpora developed by search engines. Is anybody else interested in this?"