It's been a long time since I've had an experience where I could grow as a software person who programs, rather than just learning simple skills. While learning, I was amazed by Indong's insights every moment, and I was able to confirm that there were many other options besides the programming-related decisions I had made myself. I was able to grasp the fundamental design intentions of the technologies I had taken for granted, and to have more options, I need to develop the ability to mix various paradigms well and utilize them appropriately. I think that growth is just beginning. This course seems like a good start to that. I hope that other fellow developers will also be able to fully sympathize with and enjoy multi-paradigm programming through this course.