I'd like to point out that the YT comments have some good (weird for YT, I know!) clarifications and questions about bits where she did go a bit fast or skip ov

I'd like to point out that the YT comments have some good (weird for YT, I know!) clarifications and questions about bits where she did go a bit fast or skip over things, e.g. the non-commutativity of products (in general) and such. Great video.