Which is a given, cultural practices and environment affect the genes you pass down, the same as bodies being able to tolerate different foods, antibodies from diseases, etc. This makes ethnicity more important to track over race because those markers show success and changes from two similar genetic makeups.
Sure, but that's still leaning heavy on slow genetic changes in populations, but we don't see small, slow, genetic populations over 5-10-50 generations. We see jumps in 1, 2, and 3. That's why the East German example is so dramatic. It's 1 maybe 2 generations, and you're talking about a 1 SD fall in IQ in only a couple decades, and you have, effectively, a control group in West Germany.
Starve the people, disincentiveize the people, and tyrannize the people, and their IQ collapses. That's not genetic even predominantly genetic.
Which is a given, cultural practices and environment affect the genes you pass down, the same as bodies being able to tolerate different foods, antibodies from diseases, etc. This makes ethnicity more important to track over race because those markers show success and changes from two similar genetic makeups.
Sure, but that's still leaning heavy on slow genetic changes in populations, but we don't see small, slow, genetic populations over 5-10-50 generations. We see jumps in 1, 2, and 3. That's why the East German example is so dramatic. It's 1 maybe 2 generations, and you're talking about a 1 SD fall in IQ in only a couple decades, and you have, effectively, a control group in West Germany.
Starve the people, disincentiveize the people, and tyrannize the people, and their IQ collapses. That's not genetic even predominantly genetic.