Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sdd.hp.com!usc!apple!well!nagle From: nagle@well.sf.ca.us (John Nagle) Newsgroups: comp.ai.philosophy Subject: Re: AI - the real problem Message-ID: <23019@well.sf.ca.us> Date: 6 Feb 91 18:16:47 GMT References: <1416@ucl-cs.uucp> Lines: 30 G.Joly@cs.ucl.ac.uk (Gordon Joly) writes: >I see a discontinuity in the development intelligence, at the point of >the emergence of homo sapiens. Perhaps there should be a metric of >intelligence, with rocks and logs (cf Twin Peaks) at 0 and us humans >at 1. Unclear. At our present state of ignorance, we can't really answer this question. However, opinion in neurobiology suggests that the brains of mammals differ primarily in quantitative ways. See "The Evolution of the Brain", by Sir John Eccles, (1988, Couteledge, London), especially chapter 3, section 3.1. Results from dissection, DNA measures of evolutionary distance, and time required for evolution all indicate that the brains of humans are not all that different from those of the other mammals. From an AI perspective, this is encouraging, in that if we can work our way up into the mammal range at all, we may be most of the way to human-level AI. It also indicates that levels beyond human intelligence might be possible with a similar architecture but more hardware. John Nagle John Nagle