As with all of Younghan's lectures, this Advanced Part 2 lecture was especially impressive when I finished listening to it all and saw how well it was put together. As I learned the examples in the lecture, I was always amazed at how the code developed here. It was a lecture that made me want to learn more and more as I learned. Still, as Younghan said next time, I need to review without rushing to build my basics. Thank you for always preparing good lectures.