Decades ago, it was the view that the human mind was mostly fixed in our DNA hundreds of thousands of years ago based on our ancestors’ environments then.

Heyes radically overthrows that view. When subtle genetic differences between baby humans & chimpanzees are exposed to human environments, they have huge effects.

Our familiar human natures are a lot more pliable, and might have arisen a lot more recently, than I had realised. Human nature has a lot more room to change in the future.

Of course there are limits, but I now see a lot more room for deep and rapid changes in human nature. 

Robin Hanson Overcoming Bias note

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