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An anonymous reader writes "An article by David Cole at the NY Review of Books lays out why we should care as much about the collection of metadata as we do about the collection of the data itself. At a recent debate, General Michael Hayden, who formerly led both the NSA and the CIA, told Cole, 'we kill people based on metadata.' The statement is stark and descriptive: metadata isn't just part of the investigation. Sometimes it's the entire investigation. Cole talks about the USA Freedom Act, legislation that would limit the NSA's data collection powers if it passes. The bill contains several good steps in securing the privacy of citizens and restoring due process. But Cole says it 'only skims the surface.' He writes, 'It does not address, for example, the NSA's guerilla-like tactics of inserting vulnerabilities into computer software and drivers, to be exploited later to surreptitiously intercept private communications. It also focuses exclusively on reining in the NSA's direct spying on Americans. ... In the Internet era, it is increasingly common that everyone's communications cross national boundaries. That makes all of us vulnerable, for when the government collects data in bulk from people it believes are foreign nationals, it is almost certain to sweep up lots of communications in which Americans are involved.' He concludes, '[T]he biggest mistake any of us could make would be to conclude that this bill solves the problem.'"

A while ago you had the chance to ask mathematician and theoretical physicist Freeman Dyson about his work in quantum electrodynamics, nuclear propulsion, and his thoughts on the past, present, and future of science. Below you'll find his answers to your questions. Why the United States?
by eldavojohn

Why did you take a fellowship at Cornell and stay in the United States? There's plenty of world renowned institutions in the United Kingdom and you were a pilot in the RAF -- what appealed to you about the United States? Do you have any comments or opinions on H1-Bs and the United States' current stance on immigration?

Dyson: During world war II I made plans to go to Russia after the war. I had fallen in love with the Russian language, and I knew that physics and mathematics in Russia were first-rate. So I planned to stay several years in Russia to study the Russian culture as well as science. Then soon after the war Stalin made it clear that he did not welcome foreign students. So my second choice was the USA. The main reason was that money was available from the Commonwealth Fund (now the Harkness Fund) for student fellowships in the USA. It was then easier to cross the Atlantic than to cross the Channel. I applied for a Commonwealth Fellowship and got generous support for two years in the USA. I went to Cornell because I happened by chance to meet G.I.Taylor who had been at Los Alamos with the British team during the war. He said, ``Go to Cornell, that is where all the bright people from Los Alamos went after the war.'' He was right. At Cornell I worked with Bethe and Feynman who were at the cutting edge of physics at that time.

I was never a pilot in the RAF, only a humble statistician collecting data about operations. The US is always schizophrenic about immigration. In those days the situation was generally worse than today, with strict immigration quotas. I benefited because I was British and we had the biggest quota. Now the situation is still bad but not so unfair as it was then. The quotas were overtly racist and designed to keep America for the WASPs (White Anglo-Saxon Protestants).



Education
by flogger

How has your education helped or hindered you? You are the "ideal" educated man. In our (American) culture, we don;t seem to be producing people devoted to learning, discovering, thinking, inventing, etc. What in your opinion can an educational system do to foster what you've become?

Dyson: I was extremely lucky because I came through the British education system during the war when everything was screwed up. The whole system depended on written examinations and we did not have enough ships to import paper. So there was no paper and no exams. Also there was a high shortage of teachers since all the young people were away fighting the war. As a result, I was in class only seven hours a week. A wonderful time to get an education. We had maximum freedom, and the kids learned more from one another than we would have learned from teachers.

The kids today spend far too much time in class and as a result are turned off from the things they are supposed to be learning. That is true not only in the USA but also in other countries.



Global warming: genetic engineering and coal death
by doom

In your article The Question of Global Warming, you make the point that the Earth's vegetation acts as a big carbon sink, and suggest that genetically engineered plants might do an even better job -- thus becoming the first person in history to make environmentalists angry by suggesting that top soil management is important. I have a few questions about this: (1) you mention the fanciful-sounding notion of "carbon-eating trees", but aren't there technologies that already exist that might do the job? There are claims that "no till" agriculture via the dreaded "roundup ready" plants reduce greenhouse gas emissions substantially. (2) A big part of the argument against immediate reductions in CO2 emissions is economic. Do the analyses you've seen really make an effort to capture all the costs and benefits associated with a move like banning coal burning completely? The annual deaths estimated from coal pollution seem big enough to make it worth doing even before you put global warming on the table.

Dyson: This is a complicated subject and I only discuss it in general terms. What you say about carbon-eating trees is true. Trees eat carbon almost as fast as we can burn it. No-till farming also eats carbon. The question I raised is whether we could eat more carbon by genetically engineering trees.I did not answer the question. We cannot answer it until the science of tree genetics is much better understood. The same thing is true of the effects of carbon on climate. We cannot predict the effects of carbon on climate until we understand the science of climate much better than we do now.

The shale-gas revolution has changed the economics of energy production drastically. Shale-gas is a greenhouse gas, but it is otherwise clean, doing far less damage than coal to the environment and to human health. Shale-gas is cheap and well distributed over the planet. The replacement of coal by shale-gas is by far the most practical way to get rid of coal and clean up the planet.



What are your views on the current state of fusion
by smaddox

I am of the opinion that without economical fusion, humanity will not last more than a few thousand years. I am also of the opinion that most fusion research funding is targeted at projects with little or no application to economical fusion (I see no evidence that tokamaks or inertial confinement will ever be economical. In fact, all evidence seems to suggest they will never be economical). What are your views on the current state of fusion research? Is funding misplaced? Disproportionately allocated?

Dyson: I am not an expert on plasma physics. I know only that plasma physics is very difficult and poorly understood. In my opinion the governments of the world, not only the USA, made a wrong choice about forty years ago when they stopped exploring the science of fusion with small-scale experiments and put their money into high engineering projects. The big engineering projects such as ITER are absurdly expensive and can never lead to economic fusion power. I agree with your opinions about this. I consider the funding to be misplaced. The only hope of economically useful fusion power is a radically different design which might emerge from better understanding of the basic science of plasma physics.

I do not agree that humanity needs economical fusion power in order to survive, unless you include the sun as a fusion power source. The sun is a splendid fusion reactor that will continue running for several billion years. All we need is to learn how to use sunlight economically. There are probably many ways to achieve this.



Nuclear Freeze Movement
by rotenberry

Professor Dyson,

I had the pleasure of listening to you speak at Caltech in the 1980s about the Nuclear Freeze Movement. You were a supporter even though you indicated that since the number of nuclear weapons was decreasing (at that time), keeping the current number of nuclear weapons was not desirable. Thirty years have passed. Do you think this movement accomplished any of their goals?

Dyson: The biggest reduction of nuclear weapons was done by George Bush Senior in 1989. He removed all tactical nukes from the US army and the surface navy. This was done quietly and unilaterally without any international negotiations. He got rid of about half of all our nuclear weapons, and these were the most dangerous weapons, deployed all over the world and likely to be involved in local fighting. As a result of his action, the world is much safer.

I believe we could go much further in the same direction. Unilateral action is much quicker and more effective than negotiating treaties. The next obvious step would be to get rid of nuclear bombs on airplanes. After that, land-based nuclear missiles, leaving the nuclear missile submarines till last. I think there is a good chance that the military will support such unilateral moves. The military knows that our nuclear weapons are essentially useless for fighting real wars. The problem is to educate the politicians.



Targets for the Space Industry
by manonthemoon

Given that we finally seem to have a vital and growing private space industry, what do you think the likeliest successful target for long term space industrialization/exploitation/habitation is? The Moon, near earth asteroids, Mars?

Dyson: I think it is absurd and illusory to guess what kind of space activities will be profitable. I think of the Virginia colonists who came to America to mine gold and finally got rich by growing tobacco. This is a situation where the market will decide and the market is unpredictable. They began with about a hundred years of fishing and trading operations off the coast before settlements became profitable. Things may go faster than this in space, or things may go slower. I see no point in guessing.



On the question of near/faster-than-light travel
by SixDimensionalArray

In my understanding, the concepts of nuclear pulse propulsion that were investigated in the Orion Project had the highest real potential for generating enormous energies required for "faster" travel in space than anything we have, even today. I have always felt that it is a tragedy that this research couldn't be taken further into our modern realities of exploration.

Today, we have NASA exploring the potential (on a very small scale) of faster than light (FTL) travel using ideas such as the Alcubierre drive. In common discussion, we now hear about things such as: dark matter, quantum teleportation, FTL particles in the form of cosmic rays, the likely discovery of the Higgs Boson, spacetime, etc. These appear, to the layman like myself, to be serious discussions, with new realities and new possibilities being discovered every day.

The entirety of the NASA space program as we know it has developed within the last 60 years.

Given the advances in technology we have made in such a short time, the laws of physics, and the realities of the politics of our world, do you think it is feasible that we will develop the ability for very fast, near or faster-than-light travel in the next 60 years, and which direction seems the most feasible to you?

Thank you for your contributions to science, I am humbled to be able to ask this question of you!

Dyson: I disagree with almost everything here. There are two NASAs, the real NASA which is intensely conservative and likes to use safe and reliable technology, and the paper NASA which pretends to support radical ideas but never does anything real. The paper NASA will generate a lot of hype but will certainly not lead to anything real. Faster-than-light travel is rubbish. The Orion project was designed to travel only within the solar system and is far too slow for interesting interstellar voyages. In the next 60 years we may see a public highway system started which will bring down the costs of space operations substantially, but it will not be increasing the speed of travel substantially. The important barrier to space operations is cost, not speed.



Mr. Dyson. Is AI more important than space travel?
by gestalt_n_pepper

While space travel is important for human survival in the long term, the more I think about it, the more it seems that developing a human style, scalable, artificial intelligence has for more potential to provide humans with rapid access to a much larger set of useful answers in the general domain of practical, solvable problems.

The investment should be, relatively speaking, trivial, and we already have 7 billion or so working models, so I think it's fairly certain that this can be done. Given a choice, would you advocate more resources be allocated to space travel, or AI?

Dyson: You ask whether, given a choice, I would put more resources into space or AI. My answer is that either choice would be stupid. Politicians always want to make such choices too soon, because they imagine they can pick winners. Usually they pick losers. The only way to improve the chances for finding winners is to keep all the choices open and try them all. That is particularly true for space and AI, which are not really competing with each other. They are done by different kinds of people in different kinds of enterprise. Both can and should be supported. It would be totally stupid to starve one and over-feed the other.

My own opinion is that AI has failed to fulfill its promise because we are using the wrong kind of computers. We are using digital computers, and the human brain is probably analog rather than digital. So my guess is that AI will succeed only after we move from digital to analog computing. This is a tough intellectual problem that cannot be solved just by spending a lot of money.



Transhumanism, Moore's Law, etc...
by BorisSkratchunkov

Perhaps this has been asked already (throughout the various interviews, engagements, etc that you have had hitherto), but what are your general thoughts on the Singularity movement, transhumanism, and Ray Kurzweil's overall philosophy on human progress? Are these folks realistic, optimistic, or pessimistic? What are your beliefs about the current state of human advancement, and what we must work on as we careen toward the future?

Dyson: I do not believe in any kind of ism. I believe we understand very little about human nature, about psychology or about economics. I do not take seriously any of the people who claim to predict the future. I believe them even less when they claim to be accurate predictors.



The Future of Physicists
by werepants

The early to mid 20th century was one of the most dynamic times to ever happen in physics, with massive shifts in thinking and incredible applications of science that led to some of the greatest achievements of mankind. For a variety of reasons, it seems as though progress recently has been more incremental, collective, and focused on confirming the big ideas of previous thinkers. What attribute do you think is most needed in the upcoming generation of physicists to usher in the next era of scientific progress?

Dyson: Scientific progress happens in two ways, either driven by new ideas or by new tools. The first half of the twentieth century was the time of new ideas, the second half was the time of new tools.New ideas are more exciting but new tools are often more important. For the twenty-first century, it seems that the most important contribution of physicists is to build new tools for other sciences. Examples, chemistry and biology and astronomy and computer-technology, all driven by new tools supplied by physics. This is not so exciting as discovering the Dirac equation, but probably more useful. There is plenty of good stuff for physicists to do.



Fewer Polymaths in the Modern World?
by eldavojohn

When weighted against population, it appears that there are fewer "Renaissance men/women" than there have been historically. I've heard many regular people opine about how fields require more depth and learning to make progress in them but, as a polymath yourself, what is your opinion on it?

Dyson: It is undoubtedly true that we are today drowning in information. Each of us knows a smaller fraction of the total information than earlier generations knew. Our skills have become more specialized. But I do not see any decrease in breadth of interest. The young people today are still interested in as wide a variety of subjects as we old ones were. Tools of knowledge such as the internet and Wikipedia make it easier for young people today to spread their minds over many subjects.



Parenting Esther Dyson
by ideonexus

You're daughter Esther is one of the most incredibly inspiring women role models alive today. Do you have any parenting advice for those of out here with kids of our own who would like them to become similarly active, positive, and brilliant adults?

Dyson: Thank you for your compliment to Esther and to her parents. We do not claim credit for her achievements. She was lucky to be the oldest of six, so we had little time for her and gave her little of our attention. She befitted from our benign neglect. She learned from a young age to choose her own path through life. She chose for her motto: "Always make new mistakes." I believe that is the key to her happy and productive life.

eldavojohn writes "The New York Review of Books has an article penned by Steven Weinberg lamenting the future of physics, cosmology and this era of 'big science' in which we find ourselves. A quote from Goldhaber sums up the problem nicely, 'The first to disintegrate a nucleus was Rutherford, and there is a picture of him holding the apparatus in his lap. I then always remember the later picture when one of the famous cyclotrons was built at Berkeley, and all of the people were sitting in the lap of the cyclotron.' The article is lengthy with a history of big physics projects (most painfully perhaps the SSC) but Weinberg's message ultimately comes across as pessimism laced with fatalism — easily understandable given his experiences with government funding. Unfortunately he notes, 'Big science has the special problem that it can't easily be scaled down. It does no good to build an accelerator tunnel that only goes halfway around the circle.' Apparently this article mirrors his talk given in January at the American Astronomical Society. If not our government, will anyone fund these immense projects or will physics slowly grind to a halt due to fiscal constraints?"

Hugh Pickens writes "James Ridgeway writes in Al Jazeera that with over $14 billion in sales in 2008, antipsychotics have become the single top-selling therapeutic class of prescription drugs in the U.S., surpassing drugs used to treat high cholesterol and acid reflux. While once upon a time, antipsychotics were reserved for a relatively small number of patients with hard-core psychiatric diagnoses, today it seems, everyone is taking antipsychotics. 'Parents are told that their unruly kids are in fact bipolar, and in need of anti-psychotics, while old people with dementia are dosed, in large numbers, with drugs once reserved largely for schizophrenics,' writes Ridgeway. 'Americans with symptoms ranging from chronic depression to anxiety to insomnia are now being prescribed anti-psychotics at rates that seem to indicate a national mass psychosis.' By now, just about everyone knows how the drug industry works to influence the minds of American doctors, plying them with gifts, junkets, ego-tripping awards, and research funding in exchange for endorsing or prescribing the latest and most lucrative drugs. According to Marcia Angell, former editor of the New England Journal of Medicine, under the tutelage of Big Pharma, we are 'simply expanding the criteria for mental illness so that nearly everyone has one.'"

kripkenstein sends us an article by Freeman Dyson in the NY Review of Books, in which the eminent physicist and big thinker takes on the possible end to the Darwinian era of speciation that has endured 3 billion years on this planet. He discusses the history and future of biology in terms that many in this community will find familiar: "[We can speculate about] a golden age... when horizontal gene transfer was universal and separate species did not yet exist. Life was then a community of cells of various kinds, sharing their genetic information... Evolution could be rapid... But then, one evil day, a cell resembling a primitive bacterium happened to find itself one jump ahead of its neighbors in efficiency. That cell, anticipating Bill Gates by three billion years, separated itself from the community and refused to share... [But] now, as Homo sapiens domesticates the new biotechnology, we are reviving the ancient... practice of horizontal gene transfer, moving genes easily from microbes to plants and animals, blurring the boundaries between species. We are moving rapidly into the post-Darwinian era, when... the rules of Open Source sharing will be extended from the exchange of software to the exchange of genes. Then the evolution of life will once again be communal, as it was in the good old days before separate species and intellectual property were invented."

b00le writes "The New York Review of Books has a trenchant piece, The Wrong Stuff by the great Steven Weinberg, arguing against the utility of manned spaceflight, which he feels has a largely political or sentimental function. He adds: '...I have taken the President's space initiative seriously. That may be a mistake.' Even so, his argument is detailed and rich in facts, particularly the nasty economic kind."

Phronesis writes "In "The Future Needs Us," Freeman Dyson reviews Michael Crichton's Prey. After disposing of the bad science (The Reynolds number of nanobots 'the size of red blood cells' would limit their top speed to 2 mm/sec, which would make it hard for them to swarm or chase people; Solar power would provide no more than 20 nanowatts, which would not be sufficient for the activities the book describes; etc.) he turns to the more general theme of fearmongering about nanotechnology and biotechnology, comparing Prey to Nevil Shute's On the Beach ('Prey is not as good as On the Beach, but it is bringing us an equally important message')." Read on for a few more notes from the story, which makes an interesting followup to reader cybrpnk2's positive review of Prey .

"Dyson notes Joy's oddly prescient comment in April 2000 that

I think it is no exaggeration to say we are on the cusp of the further perfection of extreme evil, an evil whose possibility spreads well beyond that which weapons of mass destruction bequeathed to the nation-states, on to a surprising and terrible empowerment of extreme individuals.

but objects to Joy's recommendation that we should 'relinquish pursuit of that knowledge...so dangerous that we judge it better that [it] never be available.' After a discussion of the actual history of biological warfare and bioterrorism, Dyson quotes Milton's Areopagitica in defense of intellectual and scientific freedom, concluding that 'Perhaps, after all, as we struggle to deal with the enduring problems of reconciling individual freedom with public safety, the wisdom of a great poet who died more than three hundred years ago may still be helpful.'"

eaglemoon writes "I have often wondered if Hackers and the Hacker culture is unique to software or can it be extended to other domains? This article in the NY Review of Books examines how amateurs are performing as well as professionals in the field of astronomy. The clash between the Baconian view of science and the Cartesian perspective is very interesting to reflect on and should be compared with community based software development and the traditional cathedrals built by firms." And it's from Freeman Dyson, always worth reading.

eaglemoon writes "I have often wondered if Hackers and the Hacker culture is unique to software or can it be extended to other domains? This article in the NY Review of Books examines how amateurs are performing as well as professionals in the field of astronomy. The clash between the Baconian view of science and the Cartesian perspective is very interesting to reflect on and should be compared with community based software development and the traditional cathedrals built by firms." And it's from Freeman Dyson, always worth reading.

Slashback tonight with an mini-avalanche of updates and corrections on Pioneer 10 (it's not a Star Trek series), Canadian copyright hearings, Intel's stance on SSSCA and similar laws, and -- Oh Yes, whether 640K really is enough for anyone. Read on for the details. Update: 03/05 00:19 GMT by T : "Pioneer," not "Voyager." Asleep at the keyboard.

Kudos to the guys behind Pioneer 10! Soft writes: "As a follow-up to yesterday's story, Pioneer 10 was successfully contacted for its 30th birthday, as announced in sci.space.news. The commands that were sent yesterday have been executed by the spacecraft, and more data has been collected by the Geiger Tube Telescope." lostchicken adds a link to Associated Press wire story on Yahoo!', writing "Not bad for a 30 year-old spacecraft. Perhaps those making time capsules could learn something from this?" Several readers also pointed out the SpaceDaily version of the goings on.

What, in the middle of Canadian winter?! schon writes: "An update to this /. story - The Canadian Copyright Board has announced the details of the public hearings on Canadian Digital Copyrights, at http://strategis.ic.gc.ca/SSG/rp00838e.html. Interested parties should register before attending (details available on the page.)"

Sent to you in compliance with the current Federal legislation An Anonymous Coward writes: "Back in June of 2000 Slashdot.org reported a story called ' Taking On A Spammer' about a spammer being hacked by a pissed sys-admin. The Behind Enemy Lines web page talked about a pump-and-dump spam done by Premier Services and Mark Rice."

(See this page for more information on that scam.)

"Well on February 25, 2002 the SEC filed charges against Mark Rice!"

Death of a legend? Jean-Luc writes "The New York Review of Books has published an article that contains an e-mail from Bill Gates denying he ever said the infamous "640K should be enough for anyone" quote. He foists the blame on IBM and claims he tried to convince them to include more address space from the get go. Very technical and fairly convincing, showing that for all his might Bill is still basically a geek's geek."

They hadn't even gotten to the bowlderizing chip yet ... Dan Gilmor pointed out Intel's strong statement Thursday on copy protection front, "much stronger than the letter sent yesterday. Surprising given their history..." Maybe Intel believes they can do a better job of what deciding what goes into Silicon than a committee of bureaucrats steered by the entertainment moguls can.

Slashback tonight with an mini-avalanche of updates and corrections on Pioneer 10 (it's not a Star Trek series), Canadian copyright hearings, Intel's stance on SSSCA and similar laws, and -- Oh Yes, whether 640K really is enough for anyone. Read on for the details. Update: 03/05 00:19 GMT by T : "Pioneer," not "Voyager." Asleep at the keyboard.

Kudos to the guys behind Pioneer 10! Soft writes: "As a follow-up to yesterday's story, Pioneer 10 was successfully contacted for its 30th birthday, as announced in sci.space.news. The commands that were sent yesterday have been executed by the spacecraft, and more data has been collected by the Geiger Tube Telescope." lostchicken adds a link to Associated Press wire story on Yahoo!', writing "Not bad for a 30 year-old spacecraft. Perhaps those making time capsules could learn something from this?" Several readers also pointed out the SpaceDaily version of the goings on.

What, in the middle of Canadian winter?! schon writes: "An update to this /. story - The Canadian Copyright Board has announced the details of the public hearings on Canadian Digital Copyrights, at http://strategis.ic.gc.ca/SSG/rp00838e.html. Interested parties should register before attending (details available on the page.)"

Sent to you in compliance with the current Federal legislation An Anonymous Coward writes: "Back in June of 2000 Slashdot.org reported a story called ' Taking On A Spammer' about a spammer being hacked by a pissed sys-admin. The Behind Enemy Lines web page talked about a pump-and-dump spam done by Premier Services and Mark Rice."

(See this page for more information on that scam.)

"Well on February 25, 2002 the SEC filed charges against Mark Rice!"

Death of a legend? Jean-Luc writes "The New York Review of Books has published an article that contains an e-mail from Bill Gates denying he ever said the infamous "640K should be enough for anyone" quote. He foists the blame on IBM and claims he tried to convince them to include more address space from the get go. Very technical and fairly convincing, showing that for all his might Bill is still basically a geek's geek."

They hadn't even gotten to the bowlderizing chip yet ... Dan Gilmor pointed out Intel's strong statement Thursday on copy protection front, "much stronger than the letter sent yesterday. Surprising given their history..." Maybe Intel believes they can do a better job of what deciding what goes into Silicon than a committee of bureaucrats steered by the entertainment moguls can.