When you mention "good prompts", is that in the context of AI, or with asking questions in general? Is it easy/hard to create good prompts from your past experience?
As for Linear Algebra, I noticed you didn't sign up - did something change your mind? Feel free to be brutally honest as it helps me make real progress! If it's easier, feel free to call +1 503 250 3868 (Tokyo time zone), or email eltonlin@alum.mit.edu anytime!