There are some concepts I have the opposite experience of: I find it fascinating, I start pulling threads, I come to all sorts of wildly interesting insights, I

There are some concepts I have the opposite experience of: I find it fascinating, I start pulling threads, I come to all sorts of wildly interesting insights, I construct it together into something I can easily talk about and explain, I explain it to others, and they nod and respond "of course" as if it were already obvious to them. Sort of feels like Principia Mathematica and 2+2 (although that's a very extreme case).