There is no such thing as intelligence. The word indicates that people have some sort of overarching cognitive capability but that simply isn’t so. There are lots of cognitive abilities and they are largely uncorrelated. Having a good sense of direction does not imply you’re musically inclined, which does not imply that you’re good at visualization, which does not imply you have good hand-eye coordination, and so on. The total number of distinct cognitive capabilities humans have has never been identified. Heritability of intelligence is just some racist and sexist nonsense dressed up as pseudoscience.
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