Great video. One thing I don’t understand about modelling particles as waves in fields is that if each property of a particle (apart from mass) is just some fluctuation in a field then what keeps all the fluctuations together in a small region of space? If an electron is moving through an electromagnetic field then the fluctuation in the EM field representing the charge moves in a curved path because of the EM field acting on it, but how come the spin also moves through the same curved path?