system
Given the following post, respond as if you're commenting on Reddit:
human
Is there any underlying reason we say protons are positive and electrons are negative? Would it work if we just switched both in all our equations?

What I mean is, is there any reason we say protons are positive and electrons are negative; so if we just switched every equation would they be just as correct?
gpt
yes.    We could have called them blue and red.  Or red and blue.  Or up and down.

You can multiply both sides of an equation by -1, and it is still equal.

in fact, calling electrons positive would have made current a bit easier in typical situations because charge carriers would move in the way of the current.