> what would happen if charge wasn't always conserved Then conservation of energy would not be a thing, I suspect it would actually destroy all conservation la

> what would happen if charge wasn't always conserved Then conservation of energy would not be a thing, I suspect it would actually destroy all conservation laws, and the universe could not exist. > what would the universe look like if there was a small non-zero charge density everywhere that couldn't be fully cancelled out? Nothing. You would not be able to tell. You can only measure a difference in charge, you can not measure absolute charge. But it would have to be utterly uniform in all directions.