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- Path: sparky!uunet!ulowell!m2c!jjmhome!smds!rh
- From: rh@smds.com (Richard Harter)
- Newsgroups: talk.origins
- Subject: Re: TIME cover story
- Message-ID: <1993Jan1.024948.1228@smds.com>
- Date: 1 Jan 93 02:49:48 GMT
- References: <1hlcnmINNkrb@agate.berkeley.edu> <1680@tdat.teradata.COM>
- Reply-To: rh@ishmael.UUCP (Richard Harter)
- Organization: Software Maintenance & Development Systems, Inc.
- Lines: 41
-
- In article <1680@tdat.teradata.COM> swf@tools3teradata.com (Stan Friesen) writes:
-
- >|> Moreover, TIME said that "many, perhaps most, evolutionary
- >|> biologists" now believe that "the coming of highly intelligent
- >|> life was close to inevitable," because of a supposed inherent
- >|> tendency of evolution to favor "behavioral flexibility," which
- >|> demands "complex information processing - smarts."
-
- >I think that TIME must have been looking for this sort of statement.
- >I have never seen any such position stated by any of the leading researchers
- >in evolution. I have never even seen such a statement in any refereed journal.
-
- >TIME is simply *wrong* here.
-
- In spades.
-
- Barrow and Tipler, in _The Anthropic Cosmological Principle_, claim that
- the consensus is in the other direction, i.e. intelligent life is
- improbable. They buttress this claim with numerous citations from
- Mayr, Dobzbhansky, Simpson, Francois, Ayala et. al. They include an
- extended quote from Mayr. The essence of Mayr's argument runs as follows:
- Compare the probability of the evolution of eyes, and the evolution of
- intelligence. Eyes have evolved independently some 40 or more times
- in a wide variety of phyla. Intelligence has evolved exactly once.
- Eyes are complex, but advantageous. If the evolution of intelligence
- were inevitable because of its advantages, we would expect to see it
- have developed many times. We do not. Either the advantages are not
- as compelling as is claimed, or the evolution of intelligence is much
- more difficult than that of eyes, or both.
-
- In fairness it should be pointed out that there has been a general increase
- in brain size in vertebrates over the past few hundred million years, so it
- is plausible that there is a general advantage, albeit small, in increased
- brain size. On the other hand the hypertrophy of the homo brain size
- does have the appearance of an anomalous, accidental occurence.
-
- --
- Richard Harter: SMDS Inc. Net address: rh@smds.com Phone: 508-369-7398
- US Mail: SMDS Inc., PO Box 555, Concord MA 01742. Fax: 508-369-8272
- In the fields of Hell where the grass grows high
- Are the graves of dreams allowed to die.
-