It’s Part 2 of the Patreon listener selected episode! David and Tamler continue their discussion on intelligence from our last episode by tackling the radioactive topic of group differences and IQ. Are there reliable differences in IQ across races? Given that IQ is strongly heritable, and that racial categories are based (in part) on biological differences, does it follow that group differences in IQ are due to biological differences across racial groups? (Could only a politically motivated science-denier conclude otherwise?) David argues that biological explanations for racial differences in IQ are based on a fundamental misunderstanding of genetics and race. It’s a complex argument, so if you start listening, please finish! (Oh and @VBW_No_Context on Twitter, take a vacation, you’ve earned it!). Plus, more on neuroscientific explanations, and Tamler relates his experience of Hurricane Harvey.