From newshub.ccs.yorku.ca!ists!helios.physics.utoronto.ca!news-server.csri.toronto.edu!psych.toronto.edu!christo Tue Jun  9 10:06:56 EDT 1992
Article 6080 of comp.ai.philosophy:
Newsgroups: comp.ai.philosophy
Path: newshub.ccs.yorku.ca!ists!helios.physics.utoronto.ca!news-server.csri.toronto.edu!psych.toronto.edu!christo
>From: christo@psych.toronto.edu (Christopher Green)
Subject: Re: Grounding: Real vs. Virtual (formerly "on meaning")
Organization: Department of Psychology, University of Toronto
References: <1992May25.202001.7388@psych.toronto.edu> <21988@castle.ed.ac.uk> <BpBs89.72D@psych.toronto.edu>
Message-ID: <BpBt3w.9AJ@psych.toronto.edu>
Keywords: symbol, analog, Turing Test, robotics
Date: Thu, 4 Jun 1992 14:47:56 GMT

In article <BpBs89.72D@psych.toronto.edu> christo@psych.toronto.edu (Christopher Green) writes:
>>>environment.
>>
>>Quite so, they usually do, but not always. The exceptions happen in
>>circumstances where other candidates are not available. 
>>
>Whether other candidates are available has little -- actually nothing -- 
>to do with whether speies that have been subjected to evolutionary change
>die off or "evolve".

Actually, I retract this before you react. If competitors that are better 
adapted are availble, it will obviously increse the rapidity of the demise
of the maladapted species. Maladapted species will usually die off anyway,
though. As Gould likes to say, it doesn't matter how well adapted the fish
is. If the pond dries up, the fish die.
-- 
Christopher D. Green                christo@psych.toronto.edu
Psychology Department               cgreen@lake.scar.utoronto.ca
University of Toronto
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