From: Robert J. Bradbury (bradbury@www.aeiveos.com)
Date: Sat Sep 11 1999 - 15:31:31 MDT
On Sat, 11 Sep 1999 hal@finney.org wrote:
>
> Or (c) there are multiple hard steps. See Robin Hanson's paper at
> http://hanson.gmu.edu/greatfilter.html. If there are ~5 hard steps
> then it is not surprising that a couple of them took only a few hundred
> million years, if we conditionalize our expectations on the fact that
> we are alive today.
Look at my comments on Robin's paper at:
http://www.aeiveos.com/~bradbury/GreatFilter/
Somewhat out of date because of the more recent work I've done.
Robert
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