文摘
Experts on intelligence research were asked about past and future IQ development. FLynn effect was explained by better health, nutrition, education, living standard. A possible FLynn effect end was explained by asymmetric fertility and migration. For the 21st century, experts expect IQ increases in low-ability regions (+ 6 IQ). For the West, experts expect a stagnation or a decline in IQ (US: − 0.45 IQ).