I'd give laser pointers to Neanderthals. Even if they did figure out some useful application for them (maybe hunting?) they'd run out of batteries eventually.

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[–] 13 points 1 year ago (1 child)

If you’re looking for the biggest change in our timeline for the littlest work I’d give a hindu-arabic numerals to early Greek mathematicians. Watching those guys try to wrap their heads around zero, that would fuck Pythagoras.

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  • [–] 5 points 1 year ago*

    The idea that nobody understood the concept of zero until long after the Greeks is just something I can never understand.

    Just... how? I don't remember having to be taught what zero was, I'm pretty sure I grokked it instantly.

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