• KISSmyOSFeddit@lemmy.world
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    6 个月前

    this data implies that everyone used to die at 30

    No, it doesn’t. Unless you don’t know what life expectancy means.

    • 1rre@discuss.tchncs.de
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      6 个月前

      Life expectancy is how long you can expect to live from birth. It being 30 implies that you can expect to live 30 years, however in fact you’d most likely live <5 or >50 years