The interesting point for me – one that is often missed – is that up to the point of observation, quantum physics is totally deterministic. There is no question of what the nature of the wave equation is that describes the electron as it passes through the slits. When he came up with his theory in 1926, Schrödinger formulated the differential equation that provides this completely deterministic prediction for the evolution of the wave function. Schrödinger’s wave equation is as deterministic in some sense as Newton’s equations of motion. The probabilistic character and uncertainty occurs when
...more
