Georgina,
Thanks for your kind comments on my blog. I see you now have a far better fundamental understanding of the propositions of QM.
You suggested you had a different explanation of the '3 Filter' experiment. I confess that worried me as the Zeilinger et al analysis is finally coherent. It seems however your description remains consistent with that, which is good, but that your viewpoint of it is different (also good!). As we agree; if nature is a mountain then each person viewing it will see it from a different position, so have his own subjective reality.
Your reversion to your own well developed thesis may be seen by some to be too my much of a departure from the central theme of the essay. You don't 'touch base' with maths very often, however I see your fundamental approach as producing the structure which mathematics should follow, which I think IS the important issue here.
One thing I was left uncertain of was whether or not you had seen that some peculiar 'mechanism' is needed beyond the basic particle interaction, socks and spin flip components, to actually reproduce the key "non-local state reduction" correlation findings of QM. I may have missed it as I've only read it properly once, but it didn't emerge. That's not a 'problem' as it's slightly aside from the topic, though an important aside. Edwin and Alan Kadin also address it. However I'm not sure you spotted the revelation of the 'con trick' that our present use of maths has been pulling on us, by switching sock colour when we weren't looking or accounting for it.
Then if Zeilingers lenses were in motion, say on some spinning planet, do you think the light re-emitted would do c wrt the lens? or wrt some other datum? Therein is the key to unification which solving the trick reveals.
Well done for a sound, well thought through, readable and and well organised essay on an important topic, and which I think should be higher placed.
Peter