Wile overall IiQ has risen, and scores on each intelligence subtest have risen, some subtest scores have risen more rapidly than others in a pattern different from the pattern linked to the genes. That’s another reason the Flynn effect does not cast doubt on the high heritability of IQ.

Steven Pinker, Enlightenment now: the case for reason, science, humanism, and progress, New York, 2018, p. 242