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Im sorry for being slowpoke, but this text contains phrase "But humanity uses gamete selection," said the Lady Sensory. "We aren't evolving any slower. If anything, choosing among millions of sperm and hundreds of eggs gives us much stronger selection pressures" Maybe I dont understand something, but in my view this phrase is biologically incorrect. Phenotype of a spermatozoon is usually determined by father's diploid DNA (if we dont examine such things as meyotic drive genes etc), so any competition between one's spermatozoons is a competition between the same genes, wich cant create any selection pressure. Also even if such pressure existed, it could only lead to spermatozoons' structure evolution and could not help to adapt to external enviroment. I also apologize for my English.