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- Organization: Doctoral student, Physics, Carnegie Mellon, Pittsburgh, PA
- Path: sparky!uunet!zaphod.mps.ohio-state.edu!cis.ohio-state.edu!news.sei.cmu.edu!fs7.ece.cmu.edu!crabapple.srv.cs.cmu.edu!andrew.cmu.edu!st0o+
- Newsgroups: talk.origins
- Message-ID: <If0vvNC00YUo0xgJIg@andrew.cmu.edu>
- Date: Fri, 13 Nov 1992 09:42:33 -0500
- From: Steven Timm <st0o+@andrew.cmu.edu>
- Subject: Re: Great-etc-grandparents
- In-Reply-To: <4236@novavax.UUCP>
- Lines: 16
-
- The question was asked "Can you imagine that someone will eventually
- exist who is the common descendant of all of us living now?"
- Problem is that a large percentage of people living now will never have
- any descendants because they will die childless (or not even survive
- to adulthood.
-
- An argument often given against large common ancestry (such as the "Eve"
- furor which raged a few years ago with mitochondrial DNA) is that
- this involves only the common maternal line. However, if one goes
- N generations back and has 2^N descendants, it's not long before 2^n is
- larger than the population of the earth, so some common ancestry
- is required. In either creationist or evolutionist ideas, Homo Sapiens
- began with a rather small gene pool.
-
- Steve Timm
-
-