I made the same point a while back. Behavioral geneticists, unlike almost everyone else, flee from their own policy relevance.
econlib.org/archives/2009/
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Listen to the science.
High heritability means most if not all interventions to close gaps will not work, and if they do the effects will be microscopically small. Nice article on the shoddy reasoning used to argue otherwise. kirkegaard.substack.com/p/high-heritab