I answered: “As an example, I thought that that was obvious.”
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‘Obvious’ is not a specific answer. So try again.
“Maxwell’s Equations as an expression of a scientific theory that is both widely accepted, and useful.”
From that answer you show you have little knowledge of who Maxwell was and what he originally postulated, nor the faintest idea how Heaviside change his equations - which can be fairly said are actually Heaviside’s, since they are not even the same sort of equation, nor have anything to do with the original postulate.
You missed that all-important word “example”, which I take to be specific. You are being deliberately obtuse and it’s obnoxious, not clever.