Here's the thing. 1927, the major differences between the founders of quantum mechanics were staged dramatically. This is a confrontation between a genius and a giant. On the one hand, it is a theoretical physicist headed by Einstein, and on the other hand, it is a young Copenhagen school. At the International Physics Conference held in Como, Italy in September that year, Bohr made a bold inference based on Heisenberg's uncertainty principle: the trajectory of particle motion is uncertain. Bohr believes that the measurement of the atomic world will affect the measured object. "The key is that we can't tell whether what we see is the behavior of the atom itself or the interaction between the atom and the measuring instrument. On the big stage of observing existence, we are both spectators and actors. " Bohr's theory was not intended to be a blockbuster, but immediately caused an uproar in the field of theoretical physics, because Bohr's theory subverted the understanding of "reality" in traditional physics. Soon, Einstein responded to Bohr at the 5th and 6th Solvay Physics Conferences: Every element of physical reality must have something corresponding in theory. If we can clearly predict the value of a physical quantity without any interference to a system, then there must be an element of physical reality corresponding to this physical quantity. Einstein thought that the statistical performance of quantum theory was caused by the imperfection of the theory. He said, "Do you really believe that God does things by rolling dice?" Bohr replied, "Don't you think it's better to be careful to describe God's will in ordinary language?" This is the general process of this event. For more information, please refer to the Debate of the Century by Jin Ruimin and Causality and Opportunity in Modern Physics by Bohm. )