Youtube Playback Speed Control Extension works well here... and I can watch it im my comfort zone of 3.5x - 4.5x. So at least 45min get cut to 10-15min..
but tested only on one so far.
I might be playing through a video really fast, but suddenly need to repeat something so hit backspace to drop to normal speed, a press or two of left arrow to jump back (~5 secs each), then tap ] a few times to speed up again. Then if there's an interesting chart or graph shown, just f to toggle full screen, s for screenshot if you like.
Being able to navigate and control linear media with simple keyboard shortcuts feels liberating in a similar way to the first time you grok a powerful edit with just a few keystrokes in Vim or Emacs (except you're just consuming media of course).
The mind just beees to get used to the voice and pitch of the speaker
– Eduards