It's been a while since I've completed a lecture. I paid for Infraon, but there were a few that I didn't listen to, but before I knew it, I had completed the lecture. I think it'll be good because there are parts that I want to go back and review as I apply them in my work in the future, and the British professor contacted me separately and told me to talk to him whenever I needed help with my actual project, which felt sincere. It was also convenient that I could get help in a separate open chat room. I think it was the first lecture that really helped me in a long time.