If it’s a one-generation thing, you will see some (or perhaps a lot of) social upheaval and a lot of artificial insemination/stud services, leading to a relatively brief dip in the population. Seriously, look up when Earth reached 1 billion people, and we’re closing in on 9 billion now. If it’s every generation, humanity will go extinct. Each fertile woman would have to have over 40 children to maintain population levels.
Humanity is already seeing the global birth rate drop to replacement rate, we’re expected to hit it within the century and keep dropping. Relatively brief dip? More likely our extinction even if it was only a single generation
If it’s a one-generation thing, you will see some (or perhaps a lot of) social upheaval and a lot of artificial insemination/stud services, leading to a relatively brief dip in the population. Seriously, look up when Earth reached 1 billion people, and we’re closing in on 9 billion now. If it’s every generation, humanity will go extinct. Each fertile woman would have to have over 40 children to maintain population levels.
Humanity is already seeing the global birth rate drop to replacement rate, we’re expected to hit it within the century and keep dropping. Relatively brief dip? More likely our extinction even if it was only a single generation