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It doesn't see like that to me.Demystifier said:He is a polite guy, this is why he doesn't directly tell anybody to shut up. But it seems to me that this is what he means.
My own perception is rather along the lines of what I expressed in the following comments:
gentzen said:Maybe more fundamental, I would have found it nice to clarify A. Neumaier's view on Ensembles in quantum field theory. I don't even understand why he thought that you have to "repeatedly prepare a quantum field extending over all of spacetime" in order to use an ensemble interpretation of QFT. But if already the fact that an ensemble interpretation is not universally applicable is never acknowledged, not even in simple examples, then this makes it difficult for me to dive into such subtle issues.
So with respect to BM, the relevant question for me seems to be whether you or other Bohmians could have benefitted from his input. (I will try to "invent" such a possible scenario below, just for fun.)gentzen said:If you always say "it is simple," or "I don't understand your problem," or "...", then this might be harmless as long as your conversation partner is right anyway and doesn't need your input. But you get him into trouble in the occasional cases where he is wrong, and would have benefitted from you input to see this for himself.
My impression is that neither Ballentine nor Einstein would agree that the minimal statistical interpretation is a flavor of Copenhagen.vanhees71 said:Well, a big part of my choice of the minimal statistical interpretation, which is very similar to a flavor of Copenhagen, which neither assumes a collapse (which cannot occur for causality reasons and it's not needed at all to use the quantum formalism to compare what's predicted concerning physical observables and what's found when measured)
My impression is that you don't understand Bohr's position at all, and "accidentally" side with Heisenberg's position with respect to the cut. But from the perspective of the minimal statistical interpretation, only Bohr's position seems to be valid.vanhees71 said:nor a quantum-classical cut (for which there is not the slightest evidence; rather the classical behavior of macroscopic objects is well-understood as an effective description of coarse-grained macroscopically relevant observables), is Occam's razor.
I guess your basic problem is that you don't understand why you have to first fix a context before applying statistics. Many scientists in the "softer sciences" ran into the practical consequences of this misunderstanding. The currently favored solution is to preregister (i.e. fix a context for) studies that would risk to get into trouble with this.
Maybe the situation is rather the opposite, and BM could actually benefit from input of skeptics like you. If you compute the complete evolution of the whole wavefunction anyway, then the trajectories of BM cannot really give you additional experimentally relevant information. But maybe there is another way to look at BM, where the trajectories are really helpful? What if you compute more than a single trajectory, and really sample from the ensemble of trajectories? The trajectories now tell you which part of the wavefunction you have to compute, and which parts you can ignore. Because now your predictions are really based on the trajectories alone, and no longer on a MWI-like wavefunction.vanhees71 said:In the case of BM first of all there's no need to calculate the Bohmian trajectories, because it's not needed to confront the theory with experiment.