I wonder if you could make a nice little rotary dial to speed up, slow down, and skip back. It’s terribly amusing to see people objecting like “some material requires time to consider!” as if a speaker can have perfect control over when I need to spend that time consideration. or, you know, you could just give me written material and I’d already have perfect control over exactly this.. https://digest.bps.org.uk/2021/12/21/watching-a-lecture-twice-at-double-speed-can-benefit-learning-better-than-watching-it-once-at-normal-speed/