Related:

• If you can't understand it, it is intuitively obvious.
• It seems intuitively obvious to me, which means that it might be wrong. -- Chris Torek
• under the hood: [hot-rodder talk] prep. 1. Used to introduce the underlying implementation of a product (hardware, software, or idea).
  Implies that the implementation is not intuitively obvious from the appearance, but the speaker is about to enable the listener to {grok} it....
• under the hood adj. [hot-rodder talk] 1. Used to introduce the underlying implementation of a product (hardware, software, or idea).
  Implies that the implementation is not intuitively obvious from the appearance, but the speaker is about to enable the listener to grok it....
• If you can keep your head when all about you are losing theirs, then you clearly don't understand the situation.
• It pays to be obvious, especially if you have a reputation for subtlety.
• No you don't understand, see you don't understand...
• To understand recursion you have to understand recursion.