4 ms·

What about the increase in defects/problems with women having children in their mid-late 30s? And older father's sperm containing more mutations https://www.nat

• glenstein 9y ago
  You are right that if this were attempted on day one by banning pregnancies by everyone except thirty-somethings, it would be a non-starter, because of the many unsolved health issues with pregnancies at that age. It wouldn't work if we put all the eggs in that basket. The strategy would be to gradually expand the range of sustainable, healthy ages to have pregnancies, so that the outer extremes eventually become part of the "heartland" range of sustainable pregnancies. You could imagine a graph showing the percentage of pregnancies that occur at each age. The strategy would be to gradually move the percentages over time so that some percentage of sixteen year old pregnancies get shifted over into seventeen year old pregnancies, some seventeen year old pregnancies become eighteen year old pregnancies, and so on. The goal is that, over time, there is escalating pressure to solve health problems that occur at later ages, problems that evolution currently has little incentive to address.