• potatoguy@potato-guy.space
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    10 小时前

    That would require some knowledge that they couldn’t get (people can’t think things that they don’t know the basics of, like a different colour). Rolling rocks and fire would be on that age.

    • folaht@lemmy.ml
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      4 小时前

      No, it would require usefullness compared to cost.
      How are you going to use the wheel when there are no combustion engines, no roads or even domesticated horses?