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- Path: sparky!uunet!utcsri!helios.physics.utoronto.ca!alchemy.chem.utoronto.ca!mroussel
- From: mroussel@alchemy.chem.utoronto.ca (Marc Roussel)
- Subject: Re: Entropy of the Universe, (was Re: Genesis - fact or fiction)
- Message-ID: <1992Aug23.175650.14850@alchemy.chem.utoronto.ca>
- Organization: Department of Chemistry, University of Toronto
- References: <1992Aug21.231150.21126@cs.rochester.edu> <25681@dog.ee.lbl.gov> <1992Aug23.122027.17019@cs.rochester.edu>
- Distribution: na
- Date: Sun, 23 Aug 1992 17:56:50 GMT
- Lines: 28
-
- In article <1992Aug23.122027.17019@cs.rochester.edu> dietz@cs.rochester.edu
- (Paul Dietz) writes:
- >There have been recent experiments in which simple molecules catalyse
- >their own formation from rather complex initial reactants, perhaps
- >with a few mutations possible. These experiments are cute, but
- >irrelevant to biogensis: the molecules are not plausible prebiological
- >molecules, nor is the amount of information they can carry
- >significant.
-
- I think you're missing the point of such experiments. No one is
- claiming that these experiments represent realistic prebiotic
- evolutionary mechanisms. Rather, these reactions are simple models
- which we can hope to understand. This sort of chemical modeling is done
- all the time when the real process we are interested in is too difficult
- for us to study immediately. The other example which springs to mind
- is so-called model or artificial enzymes, usually made from
- organometallic complexes; no one claims that these are exactly like
- biological enzymes, but the models yield some insight into the function
- of real enzymes and tell us what to look for in biochemical systems.
- Similarly, the simple self-replicators tell us what to look for in more
- realistic prebiotic evolution mechanisms.
- As I wrote in an earlier posting, the question of prebiotic
- evolution is still wide open. We hold many clues, but not much more.
- There is however no reason to believe that anything miraculous happened
- to get life started on this planet.
-
- Marc R. Roussel
- mroussel@alchemy.chem.utoronto.ca
-