I'm a computer science major, and honestly, I think there's no better lecture than this one because it digs deeper into the principles than what you learn at school, looks at the memory structure, and explains why it has to be this way. And I felt that the chapters were very well-organized to learn this much content. I think it's well-organized so that if you learn from the first lecture, you can easily follow the concepts that follow. And in addition to the chapters, if you follow the curriculum(?) that Alan created, you'll study the same concepts three times in total through video lectures, real-time lectures, and group study, so of course, it seems to be remembered much better than if you studied it once. I studied the Swift language quite a bit on my own, but I think I made more progress in the two months I took this lecture. I think it's a lecture worth taking at least once even if you're confident in your ability to study Swift on your own.