Thank you for the great lecture, Younghan!! I have taken about 10 Inflearn lectures so far, and this is undoubtedly the best lecture among them. You are really good at teaching! When I watch the lecture, I can feel how much effort the instructor puts into conveying the principles. And I think it is really good because it is easier to remember and follow the example code while teaching! I am so glad that I found Younghan's lecture when I decided to become a backend developer!! At the end of the lecture, you asked me to tell you what I need to improve, but I really can't think of anything no matter how much I think about it. This is a really perfect lecture!! And strangely, Younghan's lecture is not boring. Hahaha It's amazing!! Always stay healthy and I will come riding the wild roadmap!!