I really like this explanation! It's definitely helpful to see this sort of abstract math idea brought down to super concrete terms. Although I did have a bit o

I really like this explanation! It's definitely helpful to see this sort of abstract math idea brought down to super concrete terms. Although I did have a bit of confusion around the "./behave_differently.sh ./my_program.sh ./my_input.txt" part - I expected another layer of concreteness so I was looking for actual outputs (which I realize isn't the point - my_program.sh is supposed to be anything/everything). Other than that though this is a great piece! Short, decently written, and with a good focus but a lot of hints at further things to explore. I guess I'm also not sure about the conclusion - feels a bit like the author's pet issue on how we should teach things, and I feel like that sort of discussion is separate from the article's main focus. I'm more a fan of "here's A different pov on this topic" than "here's THE pov we should teach for this topic"