The video lectures for ai-class appear to have been awful and a waste of time. Luckily I have not wasted any time with that, and skipped straight to the questions instead. Which anyway I did mighty fine with a decent grade, thus highlighting the not-so-brilliant level of the material presented. All this despite the questions being confusing, badly formulated, and sometimes, plain wrong. I am following the new "university-level" (NOT) classes with the same attitude.