Thank you for always preparing lecture videos so we can watch high-quality lectures!! When I first took the Spring lecture, it seemed like understanding the lecture content wasn't easy, and as you mentioned, Younghan, I think it wasn't easy to understand because my Java fundamentals were lacking. I thought I had seen Java a lot so I would be somewhat good at it.. haha I think that was my arrogance. I feel it once again through this lecture. I will review and review again all the remaining lectures with a focus on understanding so that I can absorb Spring like a sponge!!