I am not implementing them "from memory". If I know the principle of, say, a B-Tree, and I know how to program in language Blub, then all I have to do is transl

I am not implementing them "from memory". If I know the principle of, say, a B-Tree, and I know how to program in language Blub, then all I have to do is translate the principle into code. It's the same with translating a concept into natural language. I have not memorized the word-by-word explanation of how the JW-Telescope deploys. I have an image of the process in my mind, so if someone wants an explanation, I translate that principle into english dynamically.