On Jun 1, 1:21*pm, "dennis@home" wrote:

Likewise we could extend human life by sterilising the off spring of those
that don't live a long time.

That wouldn't extend human life, it'd shift the mean, but then you've
got to take regression to mean into account - maybe the long-lived
ones were an anomaly? Anyway, what with all this climate change, we
should be encouraging people to breed less and live shorter lives!

(I am not a eugenicist)