>>92927553It's not controversial, shrinking sperm count or low T levels are well established for example. Or the fact IVF is such a huge deal.
But overall the reason birth rates are dropping is not the malfunction of balls, because even with low count given enough attempts (or with IVF) you will make babby. The problem is people don't even try / want to make babby.
The socio-cultural-economic enviroment (housing shortage, living wages, studying late into life, low religiosity, availability of contraception etc.) is just not productive to stable fertility rates, and it's not just US, Germany or Japan. Literally everywhere on the globe we are seeing sub replacement TFRs, in Latin America, SEA, Arab World, Iran, pretty soon only Black-Africa will have 2+ birth rates.
And there's no workable solution within realistic freameworks (going 50s Romania is not realistic). South Korea and Hungary have been putting several % of their GDP trying to nudge birth rates up for many years now and it's not working the slightest.
