Thank you for the free lecture. Looking at it, it seems that Zerocho's lecture style is to edit and show live lectures. It's good because you can see what mistakes anyone can encounter or make in real time. However, it might not be good for those who want a lecture that provides accurate information without any incorrect information at all times. If you believe that the instructor is right and then make a mistake, the students have to try again. Therefore, for those who want this kind of lecture, I recommend that you first quickly watch one lecture (it's 30 minutes at most) and then follow the code once you've organized it. Thank you for the good lecture.