That's why a curriculum ought to focus on what is actually useful and only touch on the silliness of the rest. Otherwise there is an element of time-wasting false equivalence, wouldn't you agree? For example, meteorologists do not study rain dance, even though the practice exists in some corners. Medical students don't study homeopathy or reflexology simply because there are people out there who dreamed up this stuff and sell it. So just because there are nut jobs who dreamed up crap about trading markets and wrote books about it or, even worse, sold courses, doesn't mean it should carry any weight in a legitimate syllabus.A lot of time was wasted on useless material, but I would not have known what was useful and what was not if I had not studied it all.