Live math video
Video games have "let's play" videos where someone (often an experienced player) plays through a video game while giving commentary. Similarly, there exist "live coding" videos where an experienced programmer builds a program from scratch on video. There are even videos of people solving algorithms problems in real time.[1] There don't seem to be similar videos about math. The closest things that seem to exist are:
- Fully scripted or planned explanation videos, e.g. Khan Academy, 3Blue1Brown
- In-person lectures where the lecturer has not prepared at all, so works through the proofs in real time[2]
The intended audience for a "live math" video need not be a beginner in the subject; instead, the audience can be someone who has gone through the material once, so that the video can spend time pointing out more of the interesting/subtle stuff. (This is similar to how a "let's play" video can be watched by someone who has already played through a game once, so that the video can focus on secrets/advanced techniques.)