It doesn't make much sense to argue which parts of the equations are real physical. Having said that for me the Aharonov-Bohm effect proves the "reality" of the

It doesn't make much sense to argue which parts of the equations are real physical. Having said that for me the Aharonov-Bohm effect proves the "reality" of the wave function. https://en.m.wikipedia.org/wiki/Aharonov%E2%80%93Bohm_effect https://en.m.wikipedia.org/wiki/Aharonov%E2%80%93Bohm_effect