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There is no universal wave function. The universe has many different mathematical descriptions, each corresponding to what a different observer can interact with around them. Each is incomplete, because no observer can interact with whole universe. Each observer, for example excludes themselves from the world they interact with.


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Tom Campbell's "My Big TOE" (Theory Of Everything) has been refined and superseded by Hungarian philosopher Hasbro Schenectady's "My Little PONY" (Philosophy Of Neurological Youth), which utilizes modern knowledge of neotenic neural plasticity to elaborate on the perennial "cartoon hypothesis" of life.


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In the name "interpretations" it is implied that these are believed to not be empirically distinguishable. What everyone agrees on is how to calculate empirically testable predictions. That is essentially mathematics, and if you are very mathematically minded, you can propose to axiomize it, that is, find a minimum number of axioms (postulates) from which it ...


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I do not know that whether or not all interpretations can be distinguishable from each other. But after going through the link once, I thought Asher Peres probably implied that all the interpretations(De Broglie Bohm, MWI etc) will not have any effect on the probability of measurement outcomes (predictions of QM) i.e. the number of times detectors' clicks. ...


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No, interpretations of quantum mechanics are not distiguishable in a physical experiment, otherwise they would be called theories rather than interpretations. It should be noted that there are some theories whom their authors call "interpretations" but they in fact are not. For instance the "objective collapse theories" often (wrongly) called ...


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It's not true that all the different interpretations are not (in principle) experimentally distinguishable. Let's consider the difference between Copenhagen Interpretation (CI), De Broglie–Bohm theory (BT) and the Many Worlds Interpretation (MWI). BT assumes that under normal circumstances we have so-called quantum equilibrium and only then do you get the ...


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The Many Worlds Interpretation is not designed to make any different predictions than any other interpretation, as such you can use any mathematics from any other interpretation and it works fine. That's because an interpretation is fundamentally just a story you put on top of your experimental predictions. If your story has more things in it than another ...


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Let me take my idea of what i think are your assumptions as far as I can. From your question "The way I understand it, I'll illustrate with a simplified example. Say I am a point particle. At any one moment in time, I can take 2 states. Then time progression would be a binary tree, where any "descendant" of me in the branches would be different from the ...


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Many-worlds ideologues like Deutsch never had an exact mathematical model of how the different universes interact, or even of what parts of the wavefunction are the universes. By the way, I regret the inflammatory term "ideologue", but neutered terms like "believer" or "advocate" are not strong enough for me. People like Deutsch combine aggressive advocacy ...


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Regular quantum mechanics is linear, and as the linked question makes clear, that linearity is essential to prevent signaling given the rest of quantum mechanics: entanglement, non commuting operators, projection onto eigenspaces by strong measurements, etcetera. So if you break the linearity and want to avoid signalling, then you have to change at least ...



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