• Aljernon@lemmy.today
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    2 hours ago

    Think up a password and don’t tell anyone or write it down. Now if you send someone from the future to protect you in the past, they can prove it.

  • mech@feddit.org
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    1 hour ago

    He looks like Charles Sanders Peirce, who proposed the implementation of logic via electrical circuits, and whose works provide the theoretical foundation for relational databases, computer science and AI.

  • Sam_Bass@lemmy.world
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    3 hours ago

    Thats what makes the multiverse theory so attractive. With infinite decision, you get infinite results. All equal, all valid, all allowed, and limited if any interference in them

  • Echo Dot@feddit.uk
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    5 hours ago

    Imagine the motivation you would get if people from the future suddenly started turning up trying to kill you.

    “My god, I’m hot shit, I’d better get on with it.”

    Then you just start inventing stuff, writing music, starting a political career, and travelling the world desperately trying to figure out what it is that you’re famous for. This results in international fame and fortune, and the attention of lots of women. But suddenly after sleeping around the time travelling assassin stopped coming. And it turns out that you’re the grandfather and their trying to stop you much better protected grandchild.

    Once the child is born then they are no longer interested in you.

    • brsrklf@jlai.lu
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      3 hours ago

      Though by pushing grandpa to become hot shit, they make his family rich and thus give the grandkid the resources he needed to start WW3.

    • 5too@lemmy.world
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      2 hours ago

      Nah, this is just the glimpse before the time travel cleanup crew comes through and clears up all the evidence!

    • MonkderVierte@lemmy.zip
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      2 hours ago

      This proves nothing, since having you in the know would alter the future.

      Absence of evidence is not evidence.

      • MajorMajormajormajor@lemmy.ca
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        2 hours ago

        Clearly this mad scientist handcuffed themselves, got into a duffel bag, and then shot themselves in the head twice. Classic suicide.

    • Echo Dot@feddit.uk
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      5 hours ago

      I like the idea that time machines can only transport people within the time machines own timeline. You can go back in time and see yourself finish the time machine but you can’t go back one second before that.

      Like it’s one end of wormhole that gets anchored at a particular point in time and the other end drifts forward through time, you can enter and exit the wormhole at any point in its worldline but only within that limit

      It’s still allows for time travel, and explains why no one has ever met a time traveller.

      • MonkderVierte@lemmy.zip
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        3 hours ago

        The concept of timelines (or that each decision creates a new dimension) ignores almost all of the fundamental laws of physics.

        • SkyeStarfall@lemmy.blahaj.zone
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          1 hour ago

          I mean, backwards time travel goes against our current understanding of physics. But multiple dimensions, or the many-worlds interpretation, etc, are not incompatible with our current understanding of physics, no, it’s just presently an untestable hypothesis

          • MonkderVierte@lemmy.zip
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            1 hour ago

            It doesn’t work with the law of conservation of energy for one. Except if you assume a framework of universes in which anything goes but then you needn’t bother with phisycs at all.

          • MonkderVierte@lemmy.zip
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            1 hour ago

            It doesn’t work with the law of conservation of energy for one. Except if you assume a framework of universes, in which anything goes but then you needn’t bother with physics at all.

            • SkyeStarfall@lemmy.blahaj.zone
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              57 minutes ago

              You know what’s funny? Conservation of energy isn’t true on a universal scale in our universe in the first place. The expansion of our universe over time actually breaks that symmetry. This is why light can get redshifted over travelling long distances. It loses energy into… nothing

    • omzwo@lemmy.world
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      5 hours ago

      Could write/leave a note but any reasoning can be countered with arbitrary time travel “rules”.