If I’ve learned anything, it’s that whatever you find interesting, there’s somebody else in the world that is, was, or will be obsessed by it — and — if you’re REALLY lucky, there’s a whole art/science DEVOTED to it.
AND – within that art/science, there will be a special glossary of terminology for that field. GROUND TRUTH. That’s the name of the thing I was looking for.
If you are searching for something, do you know its name?