I understand your sentiment. Back when Coursera first started I took a class where 10 minutes into the first lecture the teacher said something like “This is th

I understand your sentiment. Back when Coursera first started I took a class where 10 minutes into the first lecture the teacher said something like “This is the basic 3rd year calculus you did in highschool”. This was discouraging because it made a qualifying assumption about both me and my highschool that was far removed from my reality. In the end, that detail had no bearing on the class, and seemed to exist only to humiliate me. But, many years later, I’ve learned I gain nothing from this kind of defensiveness, and simply keep a running list of things I’m “supposed” to know, but don’t yet. Of course, now that is a small list of very uncommon things, which itself shows how much I’ve progressed. Point being, digging in your heels only hurts yourself.