With all due respect to Carlo (whose work on emergence I find very interesting): as I have noted in reply to Mark’s post under the upcoming workshop, it is certainly not necessarily a “mistake” to take the quantum state as ontic just because people have not succeeded in solving the measurement problem with the usual approaches to QM. I do hope we can refrain from casting aspersions on other points of view by calling them ‘prejudices’ or ‘confusion’. I certainly don’t agree with some approaches but I try to adduce specific logical arguments when critizing them, and methodological considerations in proposing my own approach and suggesting why I think it is a better way than others. Clearly there is a huge diversity of views on how to interpret QM, but I think we can do better than using pejoratives and (at least borderline) ad hominem descriptions to characterize those with which we do not agree.
Also, I have to note regarding Dieter’s proposed taxonomy, one does not need to modify the basic quantum dynamics to account for collapse. So one needs a 1(c): collapse in a direct-action picture in which absorption precipitates collapse (no ad hoc modification to the basic Schrodinger evolution)
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