> It all depends on the age of the children at which the period
> of "being reared together" began.
So, Anders, do you still have access to the book from which you
cited this figure, or do you perhaps remember the average age of
adoption?
Nicholas Bostrom
London School of Economics
Department of Philosphy, Logic and Scientifc Method
email: n.bostrom@lse.ac.uk
homepage: http://www.hedweb.com/nickb