This comes from xkcd comic which I’m now going through (because – and I want to emphasize causality – I should learn for Hodge Theory exam). Olek Zablocki, one of cleverer mathematics students I personally know (here’s how clever he is globally), told me once that he thinks it’d be cool to be a carpenter. This topic is very broad, and I haven’t time right now to blog (I have to read whole xkcd archive learn for my exams.)