The question seems to be pointed more at the idea of procreation vs. extending one's own life, and which is of greater value. As i type the vote is 2 to 1 for longevity. What I'm interested in is, why double-up on life? Why double childhood, adolescence, bungled youth, adulthood into middle age and infirmity? Why extend what we already have, kids or no kids? Is it not rich enough?