I can't continue the course anymore, the last 30 minutes of this lecture seems to be way too much for me. *after trying to understand the first 15 minutes of his last 30 minutes for an hour and I'm still confused. Appreciate your work Professor Strang. It's a great experience learning from you. Got this lecture bookmarked, I'll return to it one day####[['course', 'Teaching_Setup', 'NEU'], ['Professor Strang', 'Instructor', 'POS']]