system
Given the following post, respond as if you're commenting on Reddit:
human
Why doesn't the universe carry an overall positive or negative charge?
gpt
As far as we know all interactions in the universe conserve charge. So for the universe to have overall positive or negative charge, we'd have to look at the initial conditions of the universe, where a lot of our current models tend to break down or lack predictive power.

As for why charge should be conserved, it comes about as the result of a particular symmetry associated with the electromagnetic field.