@dymaxion @futurebird @whknott Where I wish people understood calculus is in *political* discussions, particularly involving economics. Not any of the techniques, just the basic idea of a function, its derivative and its integral being different things.
And maybe the idea that if you have a function of multiple variables, its rate of change is going to depend on which specific things you're holding constant.
But that last one is a HARD idea. It doesn't even really show up in AP Calculus, it's a later class. It trips people up when they're studying college-level thermodynamics.