It's already settled. You are in error. Not at all. You are making errors of reasoning, and projecting them unto me. But I say no such thing. That would be as silly as claiming there were no differences in height - I have posted the apparent partial similarity between height and IQ, in their genetic patterns, several times now. If you go back a few years, before genuine research had been done, you will find frequent claims that people from this nation or that one varied in genetic height - that some nation-states were genetically taller than others. The Japanese were short, the Americans were tall, the Dutch were short, the Germans were tall, and so forth. This also applied to races, if the applicant were slipshod, and racial bigots are all slipshod - white people were tall, yellow people were short. The argument was exactly the same as yours - the difference in average height was measured objectively, the genetic component of height was determined by careful studies with families and twins and so forth (it was easily 75%), and the mistaken conclusion followed directly. They even had cross-population comparisons in the same countries, living side by side - the short tribal residents of Peru living right next to the tall Spanish origin residents, similarly with the Spanish in the Philippines, the French in French Indochina, the British in India, for example. The same pattern we see with IQ.