While preparing for a job change, time has been tight and I wish I could have balanced study and practice better. However, thanks to Younghan's lectures, I've definitely developed an eye for distinguishing and analyzing "good code vs. bad code" while working on toy projects alongside GPT. AI is all the buzz these days, but I've come to realize that human involvement is still essential for code review and optimization. Just like my experience with 3D design, I found that the top-down thinking approach—going from the big picture to the details—applies directly to coding as well. Most importantly, every time I watch the lectures, I feel like I'm studying together with others even when alone, which gives me the strength to keep going. Just as many students' reviews give strength to the instructor, Younghan's lectures are also becoming nourishment that helps us persevere through life. This is a long review written on an emotional dawn with a glass of highball, but my heart is in it. Thank you for the great lectures.