On the Closer To Truth segment in which Professor devany appears one of the panel points out that if every human who has ever lived were imortal, but had only one child (linear vs exponential growth) the world population would be about half what it is today. In HG societies average time between births far a woman was 4yrs. Now, without contraception, it is less than one. ----------------------------------------------------------------- To unsubscribe from the list send an email to [log in to unmask] with the words SIGNOFF EVOLUTIONARY-FITNESS in the _body_ of the email. To get a copy of the old archives or the FAQ, look in the EvFit folder at http://briefcase.yahoo.com/dryeraser