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comment by Hein
Hein  ·  4350 days ago  ·  link  ·    ·  parent  ·  post: Why are humans stupid?

Yes, you can learn a lot and become more efficient but does that make you more intelligent? Where are natural selection's pressures to evolve more brain tissue? Is learning through the means of language a short-cut for gaining knowledge in stead of the evolution of intelligence? I believe that since the discovery of language human intelligence/stupidity hasn't changed at all.