Great points, particularly the in vitro reproduction, but also c-sections, etc. There is always some sense that our tech makes life too easy or does it free up physical restraint to allow our brains to improve?
At the same time, as regards birth, much of the above is happening because motherhood is being delayed. In the case of the most liberal they are instead simply passing motherhood by childless. I’m curious to watch the trends as the religious have a major advantage in child bearing. What will be the sociological effects? Will America become balkanized as liberals die out or can government schooling indoctrinate enough children to keep liberalism alive?
Good point, here and in your post 25.
If TSHTF resulting in total societal collapse, the survival of people with life-shortening physical traits, such as severe dietary allergies, may decline, resulting in a lower percentage of the population with such traits.