there was once a kind of obituary for a super-famous carmaker (Ferdinand Piëch, grandson of Porsche) by a renowned engine-engineer (Friedrich Indra) which boiled down to the fact that
"… Piëch was complicated and also explained everything in a complicated way. The art of the engineer is to make things as simple as possible. But if you explain something simply to a person and he understands it immediately, you are just a normal engineer. Someone who exudes this aura of ideas you don't understand, on the other hand, must be something special. …"
It is pessimistic but it resonates. A similar quality I've seen is people who use excessive "lingo" (like obscure abbreviations), when they know that their audience is not as familiar with the subject matter. I find myself constantly stopping them and asking them "what does X mean?" I know I shouldn't feel stupid but I do.
I get the sense that it is a similar perspective as that Piech character
"… Piëch was complicated and also explained everything in a complicated way. The art of the engineer is to make things as simple as possible. But if you explain something simply to a person and he understands it immediately, you are just a normal engineer. Someone who exudes this aura of ideas you don't understand, on the other hand, must be something special. …"