Re: Date for Last Common Ancestor?
Stephen Barnard (email@example.com)
Tue, 13 Aug 1996 07:31:43 -0800
Stephen Barnard wrote:
[snipped for brevity]
> Clearly, for large N this is extremely unlikely. But it's worse than that. Even
> for small N (say N=2), for N never to reach one it would be required that both
> mothers in set S_k-1 be the *only reproducing daughter* of the two mothers in set
> S_k, and this state of affairs would have to be maintained backward in time *in
Oops, there's a slight flaw here, but it's not fatal.
The mothers in S_k could have other reproducing daughters that weren't
in S_k-1 because their lineages died out before the present day.
Other than that, the argument still follows as before.