• moriquende@lemmy.world
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    4 days ago

    Cloning is a special case because answering the question is actually necessary for practical purposes in the real world. Debating whether a child who grew up is a different person because all the cells in the body were replaced, or whether your contract on a dock is voided because you replaced all the boards on a ship one after the other, doesn’t really have any effect on practical life.

    I’m not saying anybody having fun theorizing these things is insane, because I agree it can be fun - I’m saying anybody doing it “seriously” would be, in my eyes.

    • killingspark@feddit.org
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      4 days ago

      I mean it could have impact on the real world, the same as seriously discussing “can we still do algebra with the imaginary result of taking the root of -1”. Apparently that was purely theoretical nonsense until we noticed that that allows us to do some very cool stuff in the real world.

      • moriquende@lemmy.world
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        4 days ago

        I’m not saying all hypotheticals are useless. This one of whether a ship is still the same in particular is, though (other than for fun). Imaginary numbers were discovered as a tool while solving mathematical problems, so I would not say they are the same.

        • webghost0101@sopuli.xyz
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          4 days ago

          If i deconstruct 60% of a ship. Leave the 40% idle while i use the 60% to elsewhere construct a full ship and then proceed to rebuild the 40% in an identical full ship.

          Which ship should get the original name?