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Article 6660 of comp.ai.neural-nets: From: cam@castle.ed.ac.uk (Chris Malcolm) Subject: Re: Human intelligence vs. Machine intelligence Message-ID: <26536@castle.ed.ac.uk> Date: 5 Oct 92 00:55:43 GMT Article-I.D.: castle.26536 References: <1992Sep23.162606.13811@udel.edu> Organization: Edinburgh University Lines: 53 In article wstein@eis.calstate.edu (William K. Stein) writes: >rob@apache.dtcc.edu (Rob Jarman) writes: >> I'm looking for information or references on human intelligence vs. >> machine intelligence for a research paper. Could any of you help? > Read Penrose's, "The Emporer's New Mind". All the rest is nonesense. In "The Mind's I" by Hofstadter and Dennet you will find many interesting essays on this topic, including Turing's famous "Computing Machinery and Intelligence" paper, one of the first, and still one of the best, ever written on this topic. You will find a number of papers written by both experts in artificial intelligence, and serious critics of aritificla intelligence, in "Mind Design" by John Haugeland. Penrose, although a famous physicist, can't be counted as an expert in this field. His entertaining and otherwise instructive book unfortunately suffers from not being very well informed about machine intelligence. He suggests that current machine intelligence research programmes are doomed to failure because human cognition depends crucially on the use of an as yet undiscovered quantum-physical principle that enables the brain to utilise a kind of intelligently directed collapse of probability functions to escape the combinatorial explosion of possibilities involved in problem solving. He offers independent support for the existence of such an effect by citing some of his own research work on crystallization, in which he drew the conclusion that there was no other explanation possible of the observed effects than some kind of sub-atomic problem solving effect. Given the existence of such an effect, it was therefore possible that the architecture of the brain made use of it. Alas for Penrose, the fate which so often befalls those who argue on the basis of failure of the imagination struck rather quickly. Not long after the publication of his book Scientific American published an article by some scientists with rather more fertile imaginations than Penrose, who provided an explanation for the crystallisation observations without requiring any new physical effects. This leaves Penrose's explanation of human intelligence rather vulnerable to Occam's razor. An indication of the status of Penrose's critique of artificial intelligence is that -- apart from reviews at the time of publication -- nobody in the field is bothering to refute it, whereas the criticisms of such people as Searle and Dreyfus (which are covered in the books I cited) have spawned more books and papers than you could carry. -- Chris Malcolm cam@uk.ac.ed.aifh +44 (0)31 650 3085 Department of Artificial Intelligence, Edinburgh University 5 Forrest Hill, Edinburgh, EH1 2QL, UK DoD #205

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