๐ง People Under 30 in the World with IQ 130+
1950: 18M ๐
1960: 21M ๐
1975: 27M ๐
1990: 29M ๐
2000: 26M ๐
2025: 22M ๐
2050: 10M ๐
2075: 7M ๐
2100: 5M ๐
Source: Parra & Kirkegaard (2025), OpenPsych; UN World Population Prospects (2024), low-fertility variant