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Actually it is amazing how few generations it takes to go back that far. Assuming 15-20 years between generations, that’s 450-600 generations.

Using that ruler, go back 6 generations and you are at circa 1900.

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Right, but homo sapiens go back 200,000 (!!!) years. That’s a lot of hunting and gathering, shamans, generations, and gradual process where life wasn’t changing much generation to generation (for thousands of iterations).

And here we are going from electricity to AI in 3 - 6 generations.

I just googled when our ancestors started using tools. It’s 2,500,000 years ago. My god.

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