PeterKinnon comments on Generalizing From One Example - Less Wrong

259 Post author: Yvain 28 April 2009 10:00PM

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Comment author: PeterKinnon 14 October 2009 11:30:28PM 0 points [-]

I apologize for the diversion but would be most interested to hear your reasoning behind the attribution of computational power to evolution . (I presume you are referring to the process of evolution of living systems by natural selection) PK

Comment author: gwern 14 October 2009 11:50:01PM 1 point [-]

I'd guess it goes something like this: the answer being computed is what set of genes is best adapted to the environment (a search problem over the space of reachable organism genomes); each organism is a possible answer; every generation, an organism producing more or fewer than the average # of offspring represents a computed 1 or 0; after enough generations... Not a Universal Turing Machine, no, but still computation.

Eliezer gives a few examples of this kind of thinking in http://www.scribd.com/doc/2327578/Worlds-Most-Important-Math-Problem-Eliezer-Yudkowsky-Future-Salon and I gather it's a reasonably well-established way of mathematically approaching evolution.

Comment author: gjm 15 October 2009 09:50:08PM 1 point [-]

Yes, what gwern said. Evolution produces (very slowly and wastefully) things that are well adapted to their environments. It seems reasonable to call this an instance of computational power. If you (PK) prefer not to, though, fair enough; I think we would only be disagreeing about words, not about things.