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From my understanding of entanglement, and what it tells us about reality, the state the quantum system is in would have to be decided before measurement. This would mean that everything about our reality has been determined beforehand. The measurements are correlated regardless of what axis we choose because that choice is not actually a choice but a known part of a greater "plan".

If the quantum state collapsing to accommodate the results we measure and the measurement itself were truly simultaneous, that would essentially mean that the results are dependent on the measurement and the measurement is dependent on the result. Since something cannot be the result of an event that hasn't happened yet, where does that leave us?

How can a measurement cause an event and then return results that are predicated on the aftermath of that event? Since the pre-measurement state of a system and the post-measurement state of the system are temporaly distinguished, it seems like giving into the idea of super-determinism is the most logical conclusion here.

marked as duplicate by virmaior Jun 19 '15 at 10:48

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  • In your first two sentences you make a big jump from the quantum level to the level we exist at as humans. Events at a quantum level are not related to events at a gross human physical level. – Swami Vishwananda Jun 19 '15 at 10:32
  • @YogiDMT Please see the following questions : philosophy.stackexchange.com/questions/1210/… , philosophy.stackexchange.com/questions/10590/… , philosophy.stackexchange.com/questions/16340/… , philosophy.stackexchange.com/questions/9026/… . If your question is not addressed by those questions, please edit to explain what makes this Q different. – virmaior Jun 19 '15 at 10:48
  • according to bell inequalities, the state of entangled particles is not determined before the measurement - there is no way for the entangled particles to "coordinate" before hand how to "respond" to measurements. this is why the inequalities establish the non-locality of reality. this book by maudlin explains it beautifully and clearly: books.google.co.il/books/about/… – nir Jun 19 '15 at 13:04
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    Quantum effects become negligible ie irrelevant at the macroscopic effect; there are some people who argue for such possibilities though - like Penrose but they remain controversial. – Mozibur Ullah Jun 19 '15 at 15:55
  • @Mozibur Ullah This is not true. Superfluids and superconductors are macroscopic quantum objects, double slit experiment is a macroscopic manifestation of quantum collapse, Geiger counter can be used to create a quantum trigger for macroscopic effects, e.g. killing a cat as in Schrodinger's scenario. Penrose's speculations about quantum gravity are controversial, not channeling quantum indeterminism to macroscopic scales, that is trivial to do. – Conifold Jun 21 '15 at 21:27