First, it’s visible in simple photographs (symmetry in particular), second in IQ

First, it’s visible in simple photographs (symmetry in particular), second in IQ distribution, third in academic, economic, social and mating results, third it is persistent over hundreds of years.

It’s late for me, so I don’t want to devote too much time to an answer but you would be surprised how consistent classes are over centuries. There is a tendency to think of economic class which is one of the issues, but economic class is highly dependent upon trait conscientiousness compared to social class peers. While reproductive and social class remains consistent because genetic load determines the capacity to bear responsibility for increasing complexity in time – which is, in fact, what IQ, personality, and neurological development permit.

Now imagine you’re a politician, an academic, a teacher, or even a mother, and you want people to strive to reach their potential, and furthermore, you don’t want others to deprive them of reaching their potential. So even if you have the best intentions you do not advocate for genetic determinism. That said, as a scientist at the aggregate we see genetic determinism is inescapable … at political scales.

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