Article was not paywalled for me the first time I looked. As I recall, it claimed that the measured fall in IQ test results cannot be explained by genetics beca

Article was not paywalled for me the first time I looked. As I recall, it claimed that the measured fall in IQ test results cannot be explained by genetics because the same fall was observed within particular families. In any case, the fall seems far too big to be explained by genetics, so probably it's caused by education, I would guess. There probably is a much smaller, perhaps not yet measurable, fall caused by genetics. I tried to submit an Economist article on that. (Can you see it under https://news.ycombinator.com/submitted?id=bloak https://news.ycombinator.com/submitted?id=bloak ?)