The rule could be anything, as funny or as serious as you want. The universe will progress in a similar way that it has up until this point, unless your changed rule prevented it from doing so.

Some examples might be:

  • The invention of currency is not allowed.
  • Iron is slightly less stable.
  • The Ancient Greeks are able to cultivate Silphium, which does not go extinct now.
  • Makr Alland@lemmy.world
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    3 months ago

    How is “being bad” decided?

    If it’s decided internally (“bad” is what you believe is bad), then all the objectivists get a free pass for being assholes. Hitler is a supermodel, etc.

    If it’s decided externally (there’s an universal definition of “bad”), how far into the future does it propagate? If I rescue from drowning someone who will genocide all the Dutch in the future, when do I go bald?

    That said, beauty pageants would be much funnier, with trolley problems instead of talent competitions.

    • MehBlah@lemmy.world
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      3 months ago

      This is why this one wouldn’t work in any meaningful way. Good and bad is a human creation subject to the individuals perception.