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Nanotechnology: Lessig, Sherman and Drexler Speak

An anonymous reader writes "Reporting from The Foresight Institute's "Vision Weekend", Glenn Reynolds (aka Instapundit) discusses the future of nanotechnology and the politics behind it. Also featuring a video interview of Lessig, Sherman and nanotech pioneer Eric Drexler."

17 of 114 comments (clear)

  1. good analysis by AbdullahHaydar · · Score: 2, Interesting
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  2. Nanodangers. by caquillo · · Score: 5, Interesting
    Has anyone noticed that most of the nanodangers people are worried about are far-future sort of scenarios. Though I'm no Nanotechnician, I've got enough of a passing interest in the subject to know that scientists are not so much saying that nanotechnology is impossible(like the author of this article seems to suggest) but that self replicating nanotechnology is impossible. Now, while I know if it is actually impossible, I strongly believe that self-replicating nanotechnology is beyond our mortal grasp, and without self-replicating nanomachines, most of the other really big nano-dangers ( and many of the nanodreams ) become nigh on impossible.

    For Instance, take any sort of nanomachine that affects a human body. Nanomachines are very small and very hard to make. Our body is made of many, many cells. To kill, or change, or even repair a signifigant number of those cells, you need an obscene number of nanomachines. Without self-replicating nanos, you're going to be using alot more resources to make the nanos than it will take to achieve the same ends through other means.

    Most of the current Nanotech seems to be centered around production methods of non-nano devices, sensors of different sorts, computing, and biotechnology. (Biotech being it's own can of worms and a very different matter from nanotech, indeed.)

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    1. Re:Nanodangers. by SiliconEntity · · Score: 2, Interesting

      Has anyone noticed that most of the nanodangers people are worried about are far-future sort of scenarios.

      That's true, although I have seen some recent commentary that suggests that nanoparticles might turn out to be harmful. Just as asbestos, an inert fiber, damages the lungs, so other sorts of nanotech waste products like buckyballs might turn out to be biologically harmful.

      As far as self-replication, there are two issues. You're right that to get commercially significant numbers of nanotech devices you probably need some kind of self-rep capability. However it is sufficient to keep the self-rep within the lab or manufactury.

      The real issue with self-rep is doing it in the field; making a device that is going to go out in the world and duplicate itself. That's where the danger comes in. Laboratory self-rep is much safer because it can be made to depend on certain chemicals or feedstock that isn't present in nature. (And no, it's not going to mutate, any more than your car is going to mutate to live off of tree sap. These are machines, not living beings evolved to evolve.)

    2. Re:Nanodangers. by Noren · · Score: 2, Interesting
      There are two different technologies here which are being discussed as if they are inherently identical. Both are mostly theoretical and they would work well together, but they're not really the same thing, and either could be implemented without the other.

      It's theoretically possible, and in fact probably much easier, to design self-replicating robots (physical von Neumann machines) which are not nanoscale; one proposed application of this is to mine the asteroid belt. A lot of the dangerous possible consequences referred to as applying to 'nanotechnology'- machine reproduction out of control, nanomachines targetting inappropriate objects for conversion to more machines- would apply to von Neumann machines at any scale.

      It's also certainly possible(and much, much easier) to make nanotechnology that cannot self-replicate. The problem is that it would seem to be so hard to make them that making substantial amounts of them is easy only if they're made by other nanomachines.

      If this were made in the real world, they probably wouldn't make true von Neumann machines, as if reproduction were uncontrolled you'll get potentially dangerous exponential growth, and more importantly the corporation selling it can't make a profit. A better way is to have a nanomachine that makes nanomachines different from itself.

      The consumer of tomorrow would buy a small amount of nanomachine B which, when fed raw materials and activated makes large numbers of 'sterile' nanomachine C which is what actually does the job. The company/scientists/government/illuminati/whoever keeps nanomachine A, which is what makes nanomachine B, in some secure location. A need not be self-replicating if it's sufficiently reliable (self- or other A- repairing, perhaps?) If B can't make more B, a lot of the problems go away and you can still make enough useful C to do whatever job you need done. Perhaps B will only make a billion C or so before the user has to go buy more B, or perhaps B works for only a specified time, thus ensuring a revenue stream for the owners of A from people buying more B.

      Also, next year they can develop A', which makes B', which the public gets to use to make C', which is very slightly better than C.

      Even if A gets released and goes amok it can only make B, which results in a geometric rather than an exponential growth problem which goes away as soon as you eliminate or capture the non-self-reproducing A.

  3. Drexler r0x0Rz by tomzyk · · Score: 3, Interesting

    Engines of Creation is a good read about the possibilities we have with nanotech. It's also pretty cool that this was published in 1986 (several years before the internet really was available to most people) and he wrote about having online forums and large reositories of books/information like exists today. (and he even published the book online in hopes more authors would do the same.)

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  4. a good thing nano tech will do when by the_2nd_coming · · Score: 2, Interesting

    we have run out of energy!!!

    I sure hope some one comes up with a nice high effecency solar cell.

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    I am the Alpha and the Omega-3
  5. How about a SourceForge for Ferraris? by The+Night+Watchman · · Score: 4, Interesting

    If you can make pretty much anything at home, using nanodevices, then information becomes the key input. But how would the auto industry feel about a Napster for Ferraris?

    Not bloody likely. All a company would have to do is design their product to require registration via a serial number for activation purposes, a la Windows XP. Granted, there are cracks aplenty for something like that, so maybe it's not such a hot idea.

    Perhaps the nanoassembler would need to receive permission from the company in order to manufacture a consumer device in the first place, like an RSA key or something of that sort. Of course, once the actual assemble commands are isolated by some third-party hardware, one could just copy them and distribute them freely.

    Then there's the notion of including some manner of rare precious metal in the design of the product, but that can be acquired by other means, and while expensive, the money to buy it wouldn't go to the company in the first place.

    Hmm. Well, there go those ideas. To be honest, I think that nanotech, when it reaches maturity, will unavoidably throw a wrench in our economic system. When people can assemble their own goods for free, it's the designers who have the primary work cut out for them. And that could even turn into an open-source style of system, since if food, clothing, and other essentials can be assembled from only basic raw materials like soil, then the need for money would diminish considerably, and people could design new goods and products as a hobby.

    Of course, one person could begin distributing a super-virus that can kill us all. Then again... umm... ::buries head in sand::

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    1. Re:How about a SourceForge for Ferraris? by hamsterboy · · Score: 2, Interesting
      Neal Stephenson's The Diamond Age had an interesting system for avoiding IP theft. While matter compilers were in every home, the means to produce (or extract) pure masses of carbon, nitrogen, oxygen, etc. were centralized and monitored. Thus, you could steal any design you wanted, but the quantities of atoms used in the design, as well as the order in which they would be used, were precisely known, and when you pulled them from the Feed, you would be caught.

      Hamster

    2. Re:How about a SourceForge for Ferraris? by Anonymous Coward · · Score: 1, Interesting

      Yes, but The Seed eliminated this control structure. Goes to show that no matter how they try to control this, they won't be able to.

    3. Re:How about a SourceForge for Ferraris? by Thing+1 · · Score: 2, Interesting
      If you can make pretty much anything at home, using nanodevices, then information becomes the key input. But how would the auto industry feel about a Napster for Ferraris?

      They would hate it. And they would be powerless to stop it.

      Just like the buggy whip manufacturers were powerless to stop the automobile industry (although they did try to pass laws that required any moving vehicle to have a horse in front of it).

      Nanotechnology is going to completely rock our world. In Engines of Creation, Drexler talked about a "retreat" he and his MIT buddies had at which they drew a line down a blackboard, and listed on one side the technologies/industries that nanotechnology would profoundly affect, and on the other side, those that would not be affected.

      One half of that blackboard was empty.

      Money won't matter when you can create anything just by shoveling dirt into your replicator. And "blueprints" will be traded on-line, not so much like MP3s but more like Open Source software. In fact, Christine Peterson (Drexler's wife and business partner) was heavily into open source technologies many years ago, in conjunction with their involvement with the Foresigt Institute.

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  6. Clarke's Laws by Noren · · Score: 5, Interesting
    The article somewhat misquotes Clarke's First Law, written in 1962, which actually said:
    When a distinguished but elderly scientist states that something is possible, he is almost certainly right. When he states that something is impossible, he is very probably wrong.
    He continued:
    Perhaps the adjective "elderly" requires definition. In physics, mathematics, and astronautics it means over thirty; in the other disciplines, senile decay is sometimes postponed to the forties. There are, of course, glorious exceptions; but as every researcher just out of college knows, scientists of over fifty are good for nothing but board meetings, and should at all costs be kept out of the laboratory!
    One should keep in mind Asimov's Corrolary to Clarke's Law: (from 1977)
    When, however, the lay public rallies round an idea that is denounced by distinguished but elderly scientists and supports that idea with great fervor and emotion -- the distinguished but elderly scientists are then, after all, probably right.
    Nanotech has some danger of falling under Asimov's corrolary. Clarke's Third Law is actually better known than his first, and may apply here too:
    Any sufficiently advanced technology is indistinguishable from magic.
    All quotes taken from the rec.arts.sf.written FAQ.
  7. Self-replicating nanotech WILL exist! by cheezus_es_lard · · Score: 2, Interesting

    The entire 'futuristic' view of nanotechnology is that nanotech will progress to the point of guided creation; e.g. input a design and they produce an item. With simple programming routines, the nanobots can be made to build more nanobots as needed. Once the processing capabilities of current processors have been utilized to allow 'fuzzy decision-making' by computers, e.g. provide an array of choices weighted against a set of inputs and allow the situation to dictate what the bot does, our ability to allow these bots to operate with less and less guidance will evolve. I cannot forsee that with the current understanding of nanotech, that this is where the world will end up. The concept promoted in Neal Stephenson's 'Diamond Age' may reflect a fairly accurate depiction; though possibly in a different manner, pure material will be supplied to the nanobots, and they will use it to construct items. I honestly can see this becoming reality within my lifetime, based on our current research progression in the fields of nanotechnology and quantum physics, the latter being necessary to develop a better understanding of the weak and strong atomic forces and how to break/establish bonds and channel the energy to good use. In this fashion, the laws of nature can be used to modify the positioning of subatomic particles which will make up the products produced.

    Just some rambling thought for your consideration!
    -cheezus_es_lard

  8. Nanobots NO by asadodetira · · Score: 3, Interesting

    I'm taking a course in nanomechanics this semester and the focus of most ongoing research is not really about nanobots or self replicating machines. In my opinion some of the most interesting outcomes of nanoscience are: -Materials with novel mechanical or electrical properties. -Cheap and small measurement instruments with more capabilities. (For exampe: A chemical or biochemical laboratory on a chip) The medical-nanobot stuff is just to get funding because people think is good to fund science if it will improve our health.

  9. Re:bah by wurp · · Score: 2, Interesting

    Yes, I'm sure you know much more about the laws of physics than, say, someone with a PhD in Molecular Nanotechnology from MIT.

    There are reputable scientists who argue against the most agressive nanotech postulates, but even they don't claim we won't build molecular systems that can produce copies of themselves in the forseeable future. They're just arguing that it will be restricted to producing a class of molecules rather than almost any possible molecule. In other words, from the consumer's point of view, they are splitting hairs.

  10. Re:Dumb comment by jamesc · · Score: 2, Interesting
    Hmm interesting - couldn't you just add enough electrons to transform atoms? My atomic-physics is a little rusty but transmutation isn't a longshot anymore. ...

    Not quite. While the chemical properties of any atom are determined by the outer shell of electrons, those are controlled by the number of protons in the nucleus. (You're probably thinking of the recent Programmable Matter: The New Alchemy)

    The only method of bulk transmutation used today is neutron bombardment. Ex: breeding Plutonium 239 from Uranium 238, or making any of the medical isotopes.

    Nuclear fusion would be nice, but that hasn't reached scientific break-even yet, let alone engineering break-even.

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  11. Re:scientists and possibility by 2short · · Score: 1, Interesting

    Bullshit.

    The Standard Model (Big Bang) has been used to make a variety of testable predictions, which have panned out. Ditto for evolution. This is the essence of the scientific method: Observe a phenomenon. Formulate a theory to explain it. Use this theory to predict things you don't know. Check these things out to see if your theory holds up. Repeat. Real Scientists are very reluctant to say "This is the truth", rather they will say, "this theory has repeatedly demonstrated good predictive ability across many observattions".

    Creation "science" predicts nothing. No matter what you observe, the theory "God did it that way. He can do anything." can never be disproven. A theory that explains any evidence is useless, and it is not science.

    I'll treat creationists ideas with respect as soon as they agree that my creationist theory is as valid as theirs:
    "Joe the giant turtle barfed up the universe last week. He can vomit anything."

    I could invent theories like this all day, but it wouldn't be science.

  12. Re:Nanomachines vs. Biotechnology by caquillo · · Score: 2, Interesting
    Forgive me.

    I should have pointed out that I'm not including biotechnology as part of nanotechnology. Biotech is everything that nanotech is not: Self-Replicating, (for the most part) Easy to produce, and Extremly Dangerous. Don't get me wrong, I think we can achieve great things with Biotech and I think we should proceed with Biotech research as much as we have, if not much more. However, while Biotechnology and Nanotechnology are both suffieciently advanced technologies that deal with things primarily on a tiny scale, thier differences are enough for me to classify them as seperate things. It's arbitrary, but so am I. As for resources neccesary to produce nanomachines, quite alot are needed to produce them without self-replication, which was my point. This may change sometime in the future due to scientific progress (and I sincerely hope so) but that is how it stands as of now. While yes, we need to deal with the dangers of nanotechnology before they become actual issues, we must make sure to do so without hampering the advancement of nanotechnology as a whole. Many of the dangers which have been ascribed to nanotechnology should instead be ascribed to biotech, as well as some of the applications. Both require gentle care in the form of money and light restriction.

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