Film making is like note taking
Incidentally, one should note that the video is made up of snippets over time and then edited together at some later date. Specifically, these snippets are much like regularly taken notes which can then be later used (and even re-used--some could easily appear in other videos) to put together some larger project, namely this compilation video of his process. Pointing out this parallel between note taking and movie/videomaking, makes the note taking process much more easily seen, specifically for students. Note taking is usually a quite and solo endeavor done alone, which makes it much harder to show and demonstrate. And when it is demonstrated or modeled, it's usually dreadfully boring and uninteresting to watch compared to seeing it put together and edited as a finished piece. Edits in a film are visually obvious while the edits in written text, even when done poorly, are invisible.