Earlier quoted context omitted.
> the guy was into eugenics So are you (probably). Do you think incest should be legalized? > thought some races are smarter than others What other conclusion can you reasonably come to based on the available data?
A biologist can correct me if I'm wrong, but I understand "race" in humans to be little different than, say, hair-color. Perhaps there's data showing that brunettes are smarter than blondes? EDIT: Never mind, user krapp's comment is what I was reaching for, "Race isn't biological, it's a social and political construct."
https://www.researchgate.net/figure/PCA-clustering-Principal...