Then the only people around will be those who are genetically predispositioned to want babies...
...soon followed by one heck of a baby BOOM!
“My prediction is that after a while the only people who have children will be those who have a deep genetic predisposition to wanting a baby.”
I think you’re close. The folks who are having children in large numbers tend to be those who are deeply religious. That’s also why in the long run infanticide is going to go away. People who are pro-life (and their children and their childrens’ children) live their ethic.
Those who are pro-death live, or rather die their ethic. They don’t have children and they become numerically irrelevant in a generation or two.
Nice analysis.