I decided to put some of my exposition in racket into video form. Of course, I expected to spend twenty times as long editing, re-taking, tweaking, and then starting over again, as there were seconds of video. And, of course, I should have expected fifty times as long.
It's probably worth it to reach a segment of the population who are impervious to the standard narrative of a lecture, or a typed page. Having watched my own kids browse through movies until they know the narrative and dialogue backwards, forwards, and sideways, I figure that's how some people will want to attack explanations of programming.
So, we'll see how it goes.
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