The follow up article where normally he retreats to the motte and cherry picks comments from the previous one is somehow worse, we’re now treating Lynn as obviously correct as “has been confirmed by later research which is harder to bias.”

Yeah, many people tried to gotcha me with claims that Lynn did this or that or the other thing wrong. Lynn tries to defend his methodology here, but I think (and tried to argue in the post) that at this point, that debate is of historical interest only - there’s too much confirmation now. One commenter brings up World Bank Harmonized Learning Outcomes as an example. Another points me to this preprint, which tries to update Lynn’s numbers using all modern standardized testing data and correlations with social development index and GDP. They find mostly similar numbers to Lynn: Malawi goes from 60 → 66, and new last place goes to Sao Tome & Principe at 62. This is by people affiliated with Lynn and scientific racism, and you can choose not to trust their judgment either, but I think at least the SDI correlations are an extremely simple regression that it would be hard to fake.