I need to summarize here and there, but once the explanation starts, it feels like it runs nonstop all the way through, so I can't remember what I heard before and I miss a lot of the later parts. I understand that they want to explain even the smallest details, but it feels a bit difficult for beginners. I don't know if it's just me, but at the end of the lecture, I would like to study what role the summary of the previous content plays in the part that needs to be learned as a whole, and mention the level of difficulty, importance, etc. to increase the completeness of each lecture.