I was trying to think about charge and I am curious. It seems that there is unitary charge - +1 for protons and -1 for electrons. But is it possible to say that it is constant in time? I mean would it be possible to detect changes in unitary charge value? size? Let us say that all charges are interconnected. So if charge of one proton will change from +1 to +1,5 this will gradualy change all other charges at speed of light, so every electron will change its charge to -1,5, proton to +1,5 and so on over time, would it be possible to detect that such event happened?