> "Well, I reinvented it in the 10th grade, and the teacher said I couldn't do that." I love when you realize these things. I had a similar moment recently whe

> "Well, I reinvented it in the 10th grade, and the teacher said I couldn't do that." I love when you realize these things. I had a similar moment recently when I showed some amateur set operations library I wrote for fun a couple years ago to a friend who I am teaching to program. So she's a mathematician and she pointed out that my source code was actually the exact definition of some of the set operations. Which, in retrospect is funny because what I did was try to emulate a subset of math using linked lists and predicate functions.