Would it make a difference if the laws of physics prevent or allow a machine from operating in ‘duplicate’ mode?

  • vagrancyand@sh.itjust.works
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    15 hours ago

    Because then that means free will can’t exist.

    Deterministic universes disallow any concept of free will or variance beyond what was calculated at the very femtosecond the universe started. Nothing is possible except what has happened and will happen.

    • Dr. Moose@lemmy.world
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      10 hours ago

      There’s nothing in free will that would prevent this though. I’m confused how you get to this conclusion.

    • Contramuffin@lemmy.world
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      13 hours ago

      Strictly speaking, sure, but for all intents and purposes, you can still have practical free will in a deterministic universe. If a system is chaotic enough (which a human brain is almost certainly going to be), it may be theoretically possible to predict what a person is going to do, but it will always be practically impossible to actually do so.

      We never say that the weather is perfectly predictable, yet it’s clearly driven by purely deterministic mechanisms

      • vagrancyand@sh.itjust.works
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        11 hours ago

        The problem with chaos theory and its ilk is it’s frame of reference is so pathetically human.

        No, humans even with computer aid will not be able to predict a sufficiently chaotic system, but that doesn’t mean its not predictable.

        That’s the definition of deterministic. That given infinite compute time and an accurate starting state, and accurate formulas, you are able to calculate the totality of any single point of time in that system. In other words, if the universe were a single equation, i.e. Δe=(mc²)t and you knew the starting values of e, m, and c; you could fill in the t(ime) and figure out the Δe at any point in time.

        That fact doesn’t change if there are a infinite number of items in the formula, or even infinite formulas – there will never be any other outcome to those equations than what was set in motion at the start of the universe. Free will, i.e. true deviation from determinism, cannot exist in a deterministic universe. Without deviation from determinism, without free will, we are not participants in the universe. We are observers. We cannot change any thing, even how we think about the fact we are observers.

        Every thought you’re having right now, in a deterministic universe, was determined the second the universe started. Every action you’ve taken, including writing this comment, was set in stone. There was never a single thing you could do to change it, there was never anything else that would have ever happened, there is no variance with these starting conditions that this universe started with.

        If you are just the result of mathematical formulas being resolved in real time, you cannot change the variables. You aren’t part of setting the equation. You are a blip in it being solved.

        For most people, that’s depressing. For some people, this being proven will cause them to kill themselves, which would have been again set in stone before the Earth was formed. For anyone this should be distressing, unless, of course, you were programmed at the start of the universe to not find it distressing and just be okay with being an unwilling actor in a movie recorded before the concept of light existed.

        • Contramuffin@lemmy.world
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          7 hours ago

          I don’t disagree with you, but it seems you’ve missed the point that I was trying to make. Yes, sure, the future has been predetermined in a deterministic universe. But if no person in that universe can ever figure out what that future is going to be, is there any practical distinction? To any entity within the universe, the future is completely unknown - the only thing that can be said for sure is that there is going to be a future. That is what I mean when I say that there can exist a practical free will in a deterministic universe

          In my eyes, any person who would feel dread over whether or not free will exists in a deterministic universe is splitting hairs over a thought experiment where all outcomes are practically equivalent

    • Lumidaub@feddit.org
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      11 hours ago

      I don’t see how no free will follows from “consciousness can be cut and pasted” but I also don’t know what difference it makes for me.

      • vagrancyand@sh.itjust.works
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        11 hours ago

        Free will, presumably, is the ability to choose. Or at the very least the ability to change an action from a predetermined course.

        If consciousness derives from a series of physical interactions, i.e. you are just a set of electrochemical reactions that follow deterministic (i.e. unchanging no matter how many times it happens) physics, you cannot change anything. Every thought that you have ever thought was determined before electrons formed in the universe. Every single action the collection of waves and particles you arbitrarily call ‘you’ happened all at once at the start of the universe, we’re just seeing it happen slowly.

        If consciousness is deterministic, there is no concept of free will, you are in the middle of a mathematical formula being solved, nothing more or less. You have no ability to change your fate, or choose anything. Even your reaction to this idea was determined before the universe was cold enough for light to exist.

        Therefore, we should hope consciousness, if nothing else in the universe, is not deterministic. That there is no ability to stop or restart it here. That there isn’t a way to copy it, or paste it. Otherwise no human has ever chosen anything, even a single thought in their head.

      • vagrancyand@sh.itjust.works
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        13 hours ago

        Which would be terrible, genuinely speaking. Proving that to yourself in what is essentially suicide from anything other than a deterministic viewpoint is an extreme most will simply never do.

        Most people do not accept nor want to think that they are merely watching a movie. Most people want to believe they have struggled. That they have suffered. That they have overcome that suffering. That their choices lead, at least in part, to the success or failure of the things in their life.

        Without free will, the concept of choice does not exist. Struggle and suffering were built in. Whether or not you got through it has nothing to do with you. You have not accomplished anything, you will never accomplish anything. Not that there is a meaningful definition of ‘You’ in a purely deterministic universe; anymore than there is a definition of the viewer of a movie from the universe within that movie.