The Flynn effect denotes the increase of IQ over time and is well established and documented (not necessarily well understood, though, albeit there are many the

The Flynn effect denotes the increase of IQ over time and is well established and documented (not necessarily well understood, though, albeit there are many theories). And the last decade or so has indeed seen a reversal of the Flynn effect. https://en.m.wikipedia.org/wiki/Flynn_effect https://en.m.wikipedia.org/wiki/Flynn_effect https://news.ycombinator.com/item?id=18956085 https://news.ycombinator.com/item?id=18956085