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Evolution and the Group Selection Debate
When you're an evolutionist, you do field work. So why shouldn't we be studying people in their everyday lives? That's what sociologists do. But it turns out when you approach it from an evolutionary perspective, it becomes somewhat of a new model. I was 0.7 between the prosociality of the individual and the prosocialy of their social environment. If you take that correlation coefficient of 0.7 and you treat it as the our term and inclusive fitness theory, that means that the phenotypic correlation between the individual and their social environment is greater than full siblings. Which is 0.5. And so isn't that incredible in a modern American city?