# How can electric charge exist at all in a closed universe? [closed]

This comment on r/AskPhysics says that the net charge of a closed universe must be $$0$$ because when you add all the electric field vectors, they cancel out completely. But shouldn't this be true of any electric charge? If a lone charged particle has its charge effectively neutralized, why should this not be the case when you have multiple charged particles? Isn't it like adding $$0$$ and $$0$$ to get a non-zero number?