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From: shaw@iti.org (Howard Shaw)
Newsgroups: sci.bio
Subject: Re: Can unrelated twins exist (again)
Summary: Not in this universe
Message-ID: <56676@wlbr.IMSD.CONTEL.COM>
Date: 6 Aug 90 16:58:41 GMT
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Reply-To: shaw@mickey.imsd.contel.com.UUCP (Howard Shaw)
Organization: Contel FSD, Westlake Village, CA
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In article <15289@reed.UUCP> buckley@reed.UUCP (Ken Buckley) writes:

>series, I was struck by the huge size of Asimov's universe: 25,000,000
>_worlds_. The largest, Trantor, has 40 billion people; a small backwater

>planet per star, are there enough stars in the galaxy to support
>10^166 humans? And can anyone write a science fiction story set in such a

The usual estimate of the number of elementary particles in this universe
is 10^80, so the answer is "no".  Maybe in Asimov's universe....