what the hell is electric charge? Like it doesn’t make sense sense to me how protons are positive and electrons are negative like what does that mean?
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It doesn’t mean anything, it simply is. You may as well ask “what is an electron” or “what is a photon”. They are and we put words and have theories to describe their behavior. These aren’t explanations, they’re simply descriptions of behavior. We could call charge “boo boo” and instead of positive and negative call it “la la” and “lo lo”.
The universe behaves this way and humans give it names and figure out their behavior through mathematics and models of physics. That is the only “sense” that we make out of it. We cannot (yet) answer the question “why are they the way they are” as it seems intrinsic to how the universe works.
Physicists are trying – and things like “string theory” put forward ideas that can “explain” these properties but none of these theories have evidence or even methods to test them. So this is where human understanding lies at this point.
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