Why two or three and not twenty or thirty, if we're specifying that they're healthy and educated? :) Overpopulation (in the sense of too many meat humans) is n

Why two or three and not twenty or thirty, if we're specifying that they're healthy and educated? :) Overpopulation (in the sense of too many meat humans) is no longer particularly relevant to our future; simple copying seems likely to be more important.