The parts where you explained things well were easy to understand, even the structural aspects. But as it went on, there were explanations for the outlines, but no explanations for the code progression. And when it came to async, there was almost no explanation at all except for the outline, making it pointless to watch the lectures. Basically, in what situations, taking `wait () { }` as an example, sometimes you only add `;` at the end of the curly braces `{}`, sometimes only at the end of the curly braces, sometimes you have to add `;` in the middle and at the end, or both. Also, when inserting async in the middle, why `wait.hello((where) ~~~~.sound()` requires `where` to be in the second position, or if it doesn't matter, I feel like I haven't heard any basic explanations about that! You did a pretty good job in the beginning when you explained things well!