It’s the so-called experts who dig up the strange terms which don’t help matters. The NRA claims I’m a rifle expert but I just tell people I’m a student. I defy anyone who could ever claim they know it all. That’s impossible.
I like to keep it simple. Arcane facts have no place in the beginner's classroom, except maybe for illustrative purposes or for entertainment value (an explanation of all the various .30 caliber rifle cartridges out there opens a can of worms).
As far as know-it-alls, you're right. No-one can know everything. "The more you know, the less you know."
We're all students until the day we die.