there it is: the depopulation thing

Global Fertility Crisis Threatens 97% of World Population, Scientists Warn

Global fertility is declining, with over half of all countries and territories experiencing rates below replacement levels in 2021. By 2050, it is projected that 75 percent of the world's fertility rates will be insufficient to maintain population levels.

https://sputnikglobe.com/20240321/global-fertility-crisis-threatens-97-of-world-population-scientists-warn-1117475820.html

here is the study as PDF published online

March 20, 2024:

Global fertility in 204 countries and territories, 1950–2021, with forecasts to 2100: a comprehensive demographic analysis for the Global Burden of Disease Study 2021

https://www.thelancet.com/action/showPdf?pii=S0140-6736%2824%2900550-6