Marko Jukic@mmjukic• about 2 years ago

I think the real replacement fertility rate is not 2.1 kids per woman. It's 5.1 kids. A recent Swedish study found that in a generation born 1885-1899, an incredible 25% of people who had 2 kids had *zero* descendants by 2007! For 1 kid? 50%. A 🧵 on long-term fertility: https://t.co/DnVz2A4gO8