re: #1058 pre-Boomer Marine brat

montersj, give us a precise definition of “theory”, as you understand it.

Here it as, as per Merriam-Webster:
1: the analysis of a set of facts in their relation to one another
2: abstract thought : SPECULATION
3: the general or abstract principles of a body of fact, a science, or an art
4 a: a belief, policy, or procedure proposed or followed as the basis of action
b: an ideal or hypothetical set of facts, principles, or circumstances
5: a plausible or scientifically acceptable general principle or body of principles offered to explain phenomena
6 a: a hypothesis assumed for the sake of argument or investigation
b: an unproved assumption : CONJECTURE
c: a body of theorems presenting a concise systematic view of a subject

The only thing missing here is,
7. an absolutely incontrovertible undisputable series of proven facts, which are without doubt the absolute truth, and therefore we will go ahead and teach every single child in the whole world exactly according to our complete and comprehensive understanding, everything that has happened in the world since the beginning, and it must be believed by everybody.