@futurebird philosophy of maths undergraduate course where I left furious & depressed at the same time.
Main gist of that lecture was, “ everything you know, been taught & ever learned, is just plain wrong, in error & it is ,at best, an approximation, with integrals between human perception and actual full reality.
Furious - so I’ve spent my whole life in school up to this point learning what exactly?
Depressed - This is shite! How on earth, stars & universe am I gonna figure things out?