What were Einstein and Bohr arguing about? Why did Einstein publish the EPR paper
In order to facilitate our thinking, we replace the microscopic particles with apple, for example, if there is an apple on the table, through the observation in a place, I found that apple apple before the question now is: "I have observed in which position", it is such a seemingly simple question, but in the quantum mechanics scientists eyes has caused great controversy. They believe that before the observation, the apple is nowhere, the apple is in the superposition of any possible position, the moment of observation to randomly explore a certain position, this is the core idea of quantum mechanics superposition principle.