>A nit: each of us can choose our own plan, but as humanity we cannot
>choose a plan for ourselves. Evolutionary selection still functions, and
>plans have reproductive consequences. Those who choose plans which result
>in fewer progeny will be selected out in the long term.
And a nit upon a nit: people can have both genetic and memetic progeny.
So far, plans which result in fewer genetic but more memetic progeny
(e.g. celibate priests) are doing OK.