If you’re referring to “population collapse is the biggest threat to civilization”, I strongly disagree. Current prediction is that world population will conti

If you’re referring to “population collapse is the biggest threat to civilization”, I strongly disagree. Current prediction is that world population will continue to grow till at least 2100 and will peak at about ten billion (https://www.un.org/development/desa/pd/content/World-Population-Prospects-2022 https://www.un.org/development/desa/pd/content/World-Populat...) It may or may not collapse after that, but that’s far out. Global warming, IMO, is a much bigger threat. An aging population may become somewhat of an issue, but that’s solvable by migration, at least for the richest parts of the world (lots of young people already emigrate to the USA and Western Europe, sometimes leaving behind an aging population)