This thread has been split from a separate thread titled "neutrino". --------------- Farsight, So, on the one hand you say that electrons are quantum field excitations, but on the other hand you don't believe in virtual photons. How does that work? What I mean when I say that an electron is a point particle is that it has no detectable internal structure. It still has uncertainty in its position, just like every particle. If you think an electron is not point-like, please tell me how big it is, and show me how you calculated that. Photons stop dead when they are absorbed. And when they are emitted, they are emitted travelling at c, instantly. They don't accelerate. The magnetic moment is related to the spin, and is similarly quantised. As far as I am aware, no magic is involved.