• arendjr@programming.dev
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    19 hours ago

    That’s absolutely, demonstrably incorrect. It, like all the other processes, is something that exists in observable space-time dimensions that we can observe. It’s a state of matter observable over time.

    Do you have some source for that? Would love to see how you measure that?

    […] That’s what, simplifying a lot, a quantum effect is

    You’re also entirely ignoring the part where matter stops behaving as matter and starts interacting with itself as if you had the white and black marble in your hands at the same time, despite you only having one. This is the “magical” part, because it depends on the presence of the observer whether this effect happens or not.

    • Nalivai@lemmy.world
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      19 hours ago

      Do you have some source for that? Would love to see how you measure that?

      That’s the thing. You are the one adding an additional entity on top the reality, so you should be the one providing sources for it. We know what a brain is, we roughly know how it operates, we know that if we measure electrical activity we have perfectly working predicting theory, we can stick a person into an FMRA machine, prod a specific part of the brain and make them see purple, flail hands, or hear voices. Now, if you want to reintroduce old discarded theory of a soul into all that, it’s your job to find where it fits and find any way that it will work.
      My sources for it is the last century or so of the brain science.

      You’re also entirely ignoring the part

      Because this part doesn’t exist. It’s hard to overstate how much all of this is just math.
      The whole observer effect stems from the fact that we can’t measure quantum particles directly on account of it being too small, so we don’t have a way to know anything about them until we or something else interacts with them, usually in quite destructive ways. So in order for our math to exist, we abstract it away and talk about shit like 0.5 spin like it’s something that can make any sense in real life, just because nobody needs to explain every time that we’re talking about probability of an abstract particle in specific conditions. Because, again, we can only measure its, for example, speed by the fact that it smashed into something else with a specific force, and as you can imagine, its speed after that is quite different.
      If we return to the marble example, if my only way to tell a colour of it was to smash it to bits, we can say that the marble is in the state of black-white, but when I measure it, it changes the state to was-black-now-smashed-into-bits, thus demonstrating the observer effect. We can say that because we did a bunch of math and now we need a special black-white state of matter to make our probabilistic equations make sense. But without that, we stop at the black-white state and don’t go any further, because it’s not a thing that actually real.

      • arendjr@programming.dev
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        17 hours ago

        Regarding the quantum physics part, I was referring to the double slit experiment: https://en.wikipedia.org/wiki/Double-slit_experiment

        Matter can interfere with itself in wave patterns that behave as if the matter no longer exists in a single position, but in all possible positions at once. This shows the matter doesn’t even exist in its physical form anymore while it is part of the wave function. “Quantum particles” are not even a thing, because this effect can be reproduced with large molecules too, and there is no apparent upper limit to this: https://science-atlas.com/strange-news/largest-molecules-yet-become-waves-in-quantum-double-slit-experiment/

        This effect is real, and waving it away because it’s supposedly “too small” isn’t making it less so. It’s not too small to measure. The article mentions these molecules were fitting slits that were 50nm in size.

        As for the brain waves, it seems we’re talking about different things. Of course we can mess with the brain and alter sensory experiences. But experience and awareness are a bigger thing than merely input/output. That’s something I know to be true about myself, but I suppose you can reason that away. I merely pity those who do.

        • bunchberry@lemmy.world
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          11 hours ago

          Yeah, there is no good reason to believe that, and it doesn’t even make mathematical sense. Those kinds of popsci articles are entirely misleading as to what is actually measured.

          If a photon in the double-slit experiment really spreads out as a wave to “propagate through both slits at once,” then you would describe the particle mathematically as a field in physical space, assigning M sets of numbers to each possible place in physical space to represent the properties of the wave at that location. If you have N particles, you’d need N fields, and since each field would need M numbers, you would need NM total numbers.

          For 1 particle, the wavefunction in its position basis is also of size M, so you can assign each element of the wavefunction to a position in physical space, and then show a fancy visualization of the particle spreading out as a wave, taking all possible paths, going through both slits at once.

          But the number of elements in the wavefunction scales by N^M, not NM. So this visualization quickly stops making mathematical sense as you add more and more particles to the system. Given 3 particles and 2 locations they can be in, that’s NM=6 and N^M=8, so there is no consistent way to break apart the wavefunction into assignments of waves in physical space.

          Mathematically, the idea of waves propagating through space like this makes no sense. If you actually look at what is measured in the studies of the papers cited, they always just measure particles, but then, over very large samples, the particles form wave-like patterns.

          That would be like saying because a collection of H2O molecules can form waves on the ocean, then therefore a single H2O water molecule is a wave… it’s nonsense. The wave is a property of the ensemble statistics, it is not a property of the individual system. The individual particle is just a particle. The wave is only observed over its ensemble statistics.

          The only “wave-like” thing about particles is that, as far as we know, their behavior has a fundamental element of randomness to them, and so we have to describe them using ensemble statistics, and their ensemble statistics have certain wave-like properties. But that does not prove a single particle is a wave, that it spreads out and takes “all possible paths at once.” There is no evidence of that. No experiment has ever caught a particle in two places at once. They always find it in a specific place, and the only thing that is in more than one place at a time is the ensemble statistics!

        • Nalivai@lemmy.world
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          12 hours ago

          You aren’t properly grasping the idea. The reason we are using very complicated probabilistic math to describe extremely small things, is because we don’t have ways to directly measure the extremely small shit. If we had one, we would be doing direct math to it. However, it doesn’t stop us from doing probabilistic math to directly observable stuff, it’s just usually isn’t needed. This what separates “quantum particles” from the regular ones, quantum world needs more complicated math because we can’t do regular one.
          So when we, let’s say, apply “wave-related math” we get wave-related answers, and in this framework a particle doesn’t exist, there is only probabilistic distribution. It’s confusing, because we have to switch from normal thinking “your marble might be here or might be here” to “it’s equally probably to be here or here”, and when we write it in quantum math terms, we get particles being everywhere all at once. Because those aren’t real particles, and we only care about emerging properties.

          But experience and awareness are a bigger thing than merely input/output.

          Yes, experience and awareness are emergent phenomenon that occurs out of a very complicated electrochemical activity of a very complicated wetware. It’s one of the coolest and weirdest phenomena we observe. But it’s not something fundamentally different from any other emergent phenomena just because it can argue about itself on the internet.

          But I think we very quickly degraded down the usual path of “soul is magic” -> “soul is quantum” -> “soul is unexplainable and you’re idiot if you don’t believe me”, bit by bit like this conversations usually go.