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Is Sex the Process That Enables Evolution Cumulative?
Sex is the process by which geans get shuffled, and you you recombine geans with new combinations. It's what makes evolution cumulative, in effect. And i'm saying that exchange has exactly the same role in nation at that one one tribe can invent am, you know, one gadget, and another tribe can invent another gadget. You can't bring them together unless they're trading. The trading is what enables you to make culture cumulative - we'll hang on. I was actuallyy going to read something, if you don't mind, from your book, from page twelve, which i liked quite a bit.