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- From: carroll@cs.uiuc.edu (Alan M. Carroll)
- Subject: Re: Anthropic Principle?
- Message-ID: <1992Aug22.150501.29028@m.cs.uiuc.edu>
- Sender: news@m.cs.uiuc.edu (News Database (admin-Mike Schwager))
- Organization: Technophiles Inc. - Engineers with Attitude
- References: <1992Aug21.125058.15965@cs.ucf.edu> <gill.714437283@physics.ubc.ca> <1992Aug22.002050.7540@organpipe.uug.arizona.edu>
- Date: Sat, 22 Aug 1992 15:05:01 GMT
- Lines: 28
-
- An excellent discussion of all of this is Tippler and Barrow, _The
- Cosmological Anthropic Principle_. They have two Anthropic Principles:
-
- Weak: The physical laws of the Universe must be such that carbon based
- intelligence can evolve.
-
- Strong: The physical laws of the Universe can only be such that carbon
- based intelligence can evolve.
-
- The WAP is obviously true, since we exist. The SAP would be true if
- every logically consistent possible set of physical laws leads to
- conditions suitable for the evolution of carbon based intelligence.
-
- These principles have actual applications. For instance, why is the
- Universe so big? Because evolution takes a long time, which implies a
- large size for the Universe. A smaller one would have collapsed before
- we evolved. The book has a better example I can't recall, in which a
- nuclear anti-resonance was predicted based on the WAP because
- otherwise there wouldn't be any oxygen. In addition, Tippler and
- Barrow show that carbon based life actually depends on some very
- subtle particle physics. So, one could argue that (for instance) the
- fine structure constant is 1/137 because if it weren't, we wouldn't
- exist.
-
- --
- Alan M. Carroll "Weren't there yams involved, too?" - J. Ockerbloom
- Epoch Development Team
- Urbana Il. "I hate shopping with the reality-impaired" - Susan
-