Unfortunately we seem to be stuck in a local maxima, where we do not yet know how to do permanent regeneration to keep someone well in the healthy zone, but als

Unfortunately we seem to be stuck in a local maxima, where we do not yet know how to do permanent regeneration to keep someone well in the healthy zone, but also know how to keep people into what can best be describe as "Not yet dead" (but certainly not "healthy" either). Groups focused on longevity and removing age related diseases, in theory, should eventually get us to a point where the best parts of youth (including learning and plasticity) should make it unnecessary to have children any more, save for replacement of those who die from other causes (and maybe populating other planets etc).