Ok, what I was saying is how do we know it "is going around in circles at the numerous synchrotron light sources around the world" How do we know it is fundamental, not a field made of lots of tiny electrons
during physics, I was chatting to a friend, and the conversation reached this question ,I know it is a series of probabilities, but how do we know for certain that it an individual particle, how do we know it is not just a field of energy? (Tell me if I sound stupid)