When I first started learning programming languages, I didn't have any programming friends around me and it wasn't my major, so I had no idea how to build my programming skills. Even when I was preparing for employment, I wanted to find out what my current level was and what I lacked, but I didn't have a comparison group or information, so it was even more so. While regular academies only teach you the basics, I think Rookies's lectures teach you the direction you should go from those basics. If I remember correctly, I started taking the lectures when Unity's lectures first came out about 4 years ago, and I think they were really helpful for my career. And now, I think I'm becoming a programmer who identifies and fills in my own shortcomings. ㅎㅎ I am currently an Unreal programmer and have been researching new Unreal features and designing and creating a lot of content requested by the company, but I often wondered if the codes I wrote were the best codes and if I knew how to use them properly.. It was a simple example at the end of Dijkstra's algorithm, but since you gave a similar argument, I feel like I'm still learning a lot from Rookies even after 3 years ㅎㅎ I rewatch Rookies' lectures that I watched before or lectures that were newly released from C# to C++, and even lectures that I consider basic are new and teach me a lot when I rewatch them. I can only see 3-4 lines for writing a review, so I can't really tell if I wrote it in a disorganized way ㅋㅋㅋ I feel like I've never written a proper review even though I've been learning for a long time, so I'm leaving this post. Thank you so much for creating such a great lecture.