IQ is negatively correlated with fertility [1], which makes declining IQ a plausible explanation for this development. 1. https://georgefrancis.substack.com/p/

IQ is negatively correlated with fertility [1], which makes declining IQ a plausible explanation for this development. 1. https://georgefrancis.substack.com/p/dysgenics-by-the-numbers https://georgefrancis.substack.com/p/dysgenics-by-the-number...