Given his conclusion and brief rant, you'd think it would occur to him to grab data about the percentage of the population with a bachelor's degree for each dec

Given his conclusion and brief rant, you'd think it would occur to him to grab data about the percentage of the population with a bachelor's degree for each decade, and plot that versus the IQ data. (No, I wasn't going to, it's not my rant.) Also, there's zero discussion of the scores ticking back up from the 1990s to the 2000s. Stricter admissions standards? Somehow that doesn't seem likely. Teaching against standardized tests in high school helping students to score better on the standardized IQ test? Better than nothing.