However, the main factor of evolution is time - so while some “optimization”, for lack of a better term, and “amplification” of inherent traits may occur due to culture, it is not without limits.
True. I'm thinking that African people have been morphed by not only culture and habitat but also inbreeding on a massive scale that lowers the IQ of a people over time. Many Islamic cultures practice marriage between cousins which has led to a steady decline in over all intelligence and rational thinking. Combine all these factors together into a society and over the period of even five generations you have serious societal problems. I think the African culture and Islamic culture is mostly beyond salvage. Letting them massively integrate into Western societies has done incalculable harm which we will be seeing in this century. Degeneracy cemented firmly into our culture.
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