> If the "double every 20 years" holds, it means 6 million or so Amish by 2100. Spoiler: it doesn't hold. Extrapolating population numbers like that is extreme

> If the "double every 20 years" holds, it means 6 million or so Amish by 2100. Spoiler: it doesn't hold. Extrapolating population numbers like that is extremely rarely correct.