And that spooky action proved by Bell equation, sounds like a magic, but in reality it is a very small difference than classical physics predicted, the difference is so small that you must run the test thousands of times to make sure you see the difference. And that's also why the difference is even less observable once the number of qbuits get large
But still, the fundamental difference between Einstein's glove explanation (Reality were decided before they were observed) and Copenhagen interpretation's spooky action (Your observation change the reality by a small degree) is not answered in a satisfactional way, what is your thought on this?
My position (again I must stress I'm an amateur here) is in line with the experimental evidence. Quantum mechanics
does violate Bell inequalities. This means that if there
is any 'hidden variable', then it's non-local. But the whole point of these hidden variable theories is to conserve locality, so in this context a non-local hidden variable is irrelevant.
Underlying everything for me is a concern that we have to interpret QM via our human brains, and that this problem is perhaps insurmountable. How can you describe the universe if you, and everything you can interact with, is and always has been a part of that universe? I can't see that a complete and perfect understanding is possible from human perspective. For a start we interpret everything in terms of the framework of our consciousness, space and time. As for wave-particle duality, I certainly don't believe that for example an electron is sometimes a particle and sometimes a wave, that's absurd. I do believe that sometimes it exhibits wave-like properties and sometimes particle-like, but fundamentally I think an electron is something else entirely. Waves and particles are things that the human brain can conceive of, they are part of our model of reality. Electrons though? A thing that has mass but (apparently) absolutely no size? We can model it mathematically, we can convert that maths into a human understanding of reality, but I firmly believe that any underlying truth is and will remain perpetually elusive.
I have a friend that is a professor in QC department in one of the famous Chinese universities
I really want your friend to set up an account on this forum and join the discussion!