I listened to it all over the weekend. The thing I regret the most is why I didn't take such a high-quality lecture when I was an undergraduate. I took network classes, but honestly, I didn't remember anything because of the stiffness and the content that didn't resonate with me. However, I'm very happy because I gained basic knowledge about http through explanations and examples that were so easy to understand. I think it's a lecture that's too much to listen to once, and I'll have to keep listening. I'm looking forward to Professor Kim Young-han's classes in the future, and I'll always keep my bullets loaded.