>>13564657It is certainly false and nonsensical, but it is a good shortcut - just take the state vector, compute the norms squared of its projections onto the eigenbasis of your observable and declare those to be probabilities, done, now you can read papers on quantum information(I will make all the protons in your keyboard decay at once with my big fucking brain if you start yabbering on about density matrices). Why is this nonsense? Because measurement isn't a physically defined procedure in this approach, while in the real world the things you are measuring never actually do anything magical - they just interact with many many orders of magnitude bigger measuring apparatus. The whole problem isn't in interpreting quantum mechanics - it is in interpreting classical mechanics and the classical measurements you make quantum mechanically, which is just difficult to actually fucking do for obvious reasons.
