Ah yes, the journal of intelligence:
First, Kanazawa’s (2008) computations of geographic distance used Pythagoras’ theorem and so the paper assumed that the earth is flat (Gelade, 2008). Second, these computations imply that ancestors of indigenous populations of, say, South America traveled direct routes across the Atlantic rather than via Eurasia and the Bering Strait.
So what harms has Mr. Yudkowski enumerated? Off the top of my head I can remember: