I find a lot of lecture videos have a cadence that is intentionally slowed down and nearly unwatchable at 1X speed. I've been watching at 2x for a decade or so.

I find a lot of lecture videos have a cadence that is intentionally slowed down and nearly unwatchable at 1X speed. I've been watching at 2x for a decade or so. When I'm really adjusted to 2x because I'm watching an hour or two of lectures daily sometimes I can crank it to 3x and still take it in. But I think this is more a function of the cadence of the speaker than anything else.