> You're a Teacher, aren't you?

Why would I be? Do you have some prejudices that are acting up?

> Not like I knew we were only talking about intellectual fields of study, though.

When discussing an encyclopedia, that's usually what you are talking about. It's not like an encyclopedia can sing, or fix a car. It is nothing but knowledge.

> An assumption that may be true or false.

You'd have a pretty hard time trying to prove that any large fraction of Wikipedia editors without formal degrees are actually secretly self-taught experts in their fields. It's really not a very common thing.