Nearly everything around you save for a sliver of software was invented (and often built) by people over the last hundred years. There is no empirical evidence for qualitative difference in intelligence, certainly not to account for sudden onset of infertility.
If the effect from 1934 to 2008 had been 14 points (believable given advances in nutrition and education), what had it been from 2008 to 2025? And is it reasonable to believe that those hypothesized couple points from the old median did it?
