I don't like the covariance argument because ultimately it is fine to consider foliation as well, ultimately the problems in quantum mechanics make a lot more sense if there is absolute simultaneity.
For photons they are just quantized waves, in the sense that their sources and sinks to to speak only being able to get existed or relaxed by increments of amplitudes that is absorbed from the entire wavefront, and fermions are different they are the sources and sinks and they have a physical structure that is alway localized, but they also have a dominant frequency associated with them as a sort of pilot wave, when you produce some electron beam for example you will have a coherent beam associated with it of these pilot waves as well as the particles themselves that can account for the interference effects, and an structure of coupling to the angular momentum homding degrees of freedom in the vacuum that can account for all spin entanglement, positon entanglement or momentum entanglement is trivial. All of it is pretty easy to explain in a classical world. The difficult part is to having to prove things about the structure of electrons from large numbers, it is actually harder in some sense to do than to explain the economy by studying atoms, exaggeration but its close, to for example give an example of a process that selects a spesific orientation for an uncertain spin measurement is extremely complicated.
That has always been a problem for me in many worlds all kinds of local conservation laws demand that the branching might as well have happened already, and the branches are really just parallel worlds all along, but then the motivation falls apart, but then again i cant for the life of me see what the motivation was in the first place either, precisely because of concerns like this, it seems to me that if such a suggestion is more natural, that all the branching actually doesnt happen, that the best many worlds tyoe lf branching is having two identical worlds that don't have the same origin seoeratley identical up to some measurment, but then why have any branches at all, why not just say every instance lf an experiment as a determined outcome, but similar quantum states are distriduted in a certain way in the single branch. This view has just as much grounding, even without considering where the determination comes from. Many worlds seems to me just to be motivated by refusing to answer a question about where an outcome comes from, and instead saying there can be all outcomes. There is nothing bjt the difficulty of an alternative to motivate it, it is like saying i should lay on the couch all the because i don't want to go golfing, i don't think anything about golfing really has anything to say about whether i should lay on the couch.
But i don't thing there are ever any superpositions, i think the nature of superpositions are different, for example in the double slit, for leptons i just need some guiding wave, and for photons i just need a wave and everything is satisfactory, for entanglement i just need a more complicated wave and a vacuum where the angular momentum associated with the fields is realised by a condensate of superluminal matter. Then there really is no superpositions at all, but electrons and photons are not quite particles either, the nature of superpositions in that case is a bit different, but a spesific quantum state always corresponds to a preparation not a spesific state, there are infinite possibilities for the actual state of an identical quantum state, much like the fancy prepared state but up a notch. The origin of the interference for photons for example is quite simple, there really is a real physical wave but the wave collapses upon absorption, somewhat like a soap bubble, pop, but until its incriments of energy is actually absorbed it is just like a little bit of a strange classical wave, so it just goes through both slits and interferes and as long as the amplitude times the size of the front is not altered a lot the interference will persist evennfor weak light, this is because the numbers of "layers of soap bubble" are small so to speak and then doing anything to it to try to get some observable effect on either slit you will destroy the coherence of the wave, the superpositions just never existed in the first place, when this wave hits the right kind of atom or metal in some photo multiplier it will get absorbed even if its amplitude is small, sych that the classical interaction between and electromagnetic wave and an atom transferring that amount of energy would be absurd, but because the energy of the em wave is stored in the rotation of real degrees of freedom in the vacuum and so is the state of the atom and constitutents the entire energy spread across the wavefron can spontaneously be absorbed by an atom such that the entire wavefront that is not localized collapses very quickly, this only works with absolute simultaneity, and it only works this way for massless "bosons", for charged and massive particles it has some interial and charge that has to be locally conserved, but these particles can have a more pilot wave lile solution to their origin of interference phenomenon, and it isn't that hard to get done, especially when the rest of the fields are constructed like this with superluminal degrees of freedom made up of actual matter making up the angular momentum and energy of the fields.
I feel like all the arguments for why qm needs to be fundamentally right or non deterministic is just a lack of imagination, and the same with the discourse around covariance and simultaneity, absolute simultaneity is fine, it isn't even in conflict with our current theories, it just isn't determined by current theories. But if you could teleporting to another galaxy and back, it seems absolutely absurd to suggest that the velocity upon departure or return has anything to do with when you arrive. The least absurd assumption is that if you do something lile that you will the earliest arrive after you left, and if you assume one definition of simultaneity and then calculate everything with respect to that definition you can indeed never time travel without teleporting to the past, and just considering subliminal physics, you cant break causality even if you are sloppy about simultaneity, but if you sticn to one coordinate system you dont ruin anything at all, and the right answer to what happens is always consistent with using a single definition for the regimes we have tested so it should be for regimes we have not tested either, that means that if you suddenly discover superluminal travel the assumption is that the consequence with respect to a single definition of simulteity should be the results you should look for bekng conserved as causal, and therefore you simply need a foliation to deal with superluminal travel, therefore any objective collapse or theory to explain entanglement classically must have a foliation, or absolute simultaneity. And that isn't in cinflic with experiment, the benefits of lorentz symmetry in particles physkcs is overblown, because the approximate physics that are lorentz symmetric are generic to models where space time lile structure emerges. It is not an issue at all to break lorentz symmetry, nothing breaks as long as you do it responsibly.
And i have never heard any practical differences between many worlds and whatever else inside a single branch and therefore i see absolutely bo reasons for buying into it, it just seems like adding in infinite junk to explain why quantum mechanics isn't deterministic as a framework, by claiming the equation is self sufficient.
Local conservation of charge, sure that is nice.
Locally conserved change cant be a thing in many worlds, or the worlds would have to have been different before the branching.
Keep the game lit fam🔥🔥
I don't like the covariance argument because ultimately it is fine to consider foliation as well, ultimately the problems in quantum mechanics make a lot more sense if there is absolute simultaneity.
For photons they are just quantized waves, in the sense that their sources and sinks to to speak only being able to get existed or relaxed by increments of amplitudes that is absorbed from the entire wavefront, and fermions are different they are the sources and sinks and they have a physical structure that is alway localized, but they also have a dominant frequency associated with them as a sort of pilot wave, when you produce some electron beam for example you will have a coherent beam associated with it of these pilot waves as well as the particles themselves that can account for the interference effects, and an structure of coupling to the angular momentum homding degrees of freedom in the vacuum that can account for all spin entanglement, positon entanglement or momentum entanglement is trivial. All of it is pretty easy to explain in a classical world. The difficult part is to having to prove things about the structure of electrons from large numbers, it is actually harder in some sense to do than to explain the economy by studying atoms, exaggeration but its close, to for example give an example of a process that selects a spesific orientation for an uncertain spin measurement is extremely complicated.
But it will be done
That has always been a problem for me in many worlds all kinds of local conservation laws demand that the branching might as well have happened already, and the branches are really just parallel worlds all along, but then the motivation falls apart, but then again i cant for the life of me see what the motivation was in the first place either, precisely because of concerns like this, it seems to me that if such a suggestion is more natural, that all the branching actually doesnt happen, that the best many worlds tyoe lf branching is having two identical worlds that don't have the same origin seoeratley identical up to some measurment, but then why have any branches at all, why not just say every instance lf an experiment as a determined outcome, but similar quantum states are distriduted in a certain way in the single branch. This view has just as much grounding, even without considering where the determination comes from. Many worlds seems to me just to be motivated by refusing to answer a question about where an outcome comes from, and instead saying there can be all outcomes. There is nothing bjt the difficulty of an alternative to motivate it, it is like saying i should lay on the couch all the because i don't want to go golfing, i don't think anything about golfing really has anything to say about whether i should lay on the couch.
But i don't thing there are ever any superpositions, i think the nature of superpositions are different, for example in the double slit, for leptons i just need some guiding wave, and for photons i just need a wave and everything is satisfactory, for entanglement i just need a more complicated wave and a vacuum where the angular momentum associated with the fields is realised by a condensate of superluminal matter. Then there really is no superpositions at all, but electrons and photons are not quite particles either, the nature of superpositions in that case is a bit different, but a spesific quantum state always corresponds to a preparation not a spesific state, there are infinite possibilities for the actual state of an identical quantum state, much like the fancy prepared state but up a notch. The origin of the interference for photons for example is quite simple, there really is a real physical wave but the wave collapses upon absorption, somewhat like a soap bubble, pop, but until its incriments of energy is actually absorbed it is just like a little bit of a strange classical wave, so it just goes through both slits and interferes and as long as the amplitude times the size of the front is not altered a lot the interference will persist evennfor weak light, this is because the numbers of "layers of soap bubble" are small so to speak and then doing anything to it to try to get some observable effect on either slit you will destroy the coherence of the wave, the superpositions just never existed in the first place, when this wave hits the right kind of atom or metal in some photo multiplier it will get absorbed even if its amplitude is small, sych that the classical interaction between and electromagnetic wave and an atom transferring that amount of energy would be absurd, but because the energy of the em wave is stored in the rotation of real degrees of freedom in the vacuum and so is the state of the atom and constitutents the entire energy spread across the wavefron can spontaneously be absorbed by an atom such that the entire wavefront that is not localized collapses very quickly, this only works with absolute simultaneity, and it only works this way for massless "bosons", for charged and massive particles it has some interial and charge that has to be locally conserved, but these particles can have a more pilot wave lile solution to their origin of interference phenomenon, and it isn't that hard to get done, especially when the rest of the fields are constructed like this with superluminal degrees of freedom made up of actual matter making up the angular momentum and energy of the fields.
Charge *
I feel like all the arguments for why qm needs to be fundamentally right or non deterministic is just a lack of imagination, and the same with the discourse around covariance and simultaneity, absolute simultaneity is fine, it isn't even in conflict with our current theories, it just isn't determined by current theories. But if you could teleporting to another galaxy and back, it seems absolutely absurd to suggest that the velocity upon departure or return has anything to do with when you arrive. The least absurd assumption is that if you do something lile that you will the earliest arrive after you left, and if you assume one definition of simultaneity and then calculate everything with respect to that definition you can indeed never time travel without teleporting to the past, and just considering subliminal physics, you cant break causality even if you are sloppy about simultaneity, but if you sticn to one coordinate system you dont ruin anything at all, and the right answer to what happens is always consistent with using a single definition for the regimes we have tested so it should be for regimes we have not tested either, that means that if you suddenly discover superluminal travel the assumption is that the consequence with respect to a single definition of simulteity should be the results you should look for bekng conserved as causal, and therefore you simply need a foliation to deal with superluminal travel, therefore any objective collapse or theory to explain entanglement classically must have a foliation, or absolute simultaneity. And that isn't in cinflic with experiment, the benefits of lorentz symmetry in particles physkcs is overblown, because the approximate physics that are lorentz symmetric are generic to models where space time lile structure emerges. It is not an issue at all to break lorentz symmetry, nothing breaks as long as you do it responsibly.
And i have never heard any practical differences between many worlds and whatever else inside a single branch and therefore i see absolutely bo reasons for buying into it, it just seems like adding in infinite junk to explain why quantum mechanics isn't deterministic as a framework, by claiming the equation is self sufficient.