I was just thinking, as I do sometimes when my brain won't shut up and... If an electron is an elementary particle, and a positron is an elementary particle, why do they share so many properties, and yet are different slightly in almost every way. All the mass measurements show that the positron is lighter slightly, while still being the exact same "amount" of charge. It seems to me, that if E=mc^2, and the masses are different, with the speed of light being constant, then the energy level must be different. If that was true, they wouldn't truly annihilate, as their charge would also be not equal. So, If their charge energy is elementary, maybe there's a modifier particle that flips the charge, and therefore gives the electron more weight, and therefore a better "grasp" on the universe. It could also explain why the universe has more matter than antimatter, as there's a weight difference in charge shifting (That modifier particle). Just a brainstorm, thoughts?