>I don’t think I have suffered from the speed at which material covers a subject since I left school. [...] Thinking about it more often than not I wish I could actually go slower rather than faster. I’m curious about how the experience of others commenters differ here
For many listeners, they suffer from speakers talking too slowly which causes them to tune out and become disengaged. This handicaps learning instead of enhances it.
A lot of people can read text at ~200 to 300 wpm. Since many speakers talk at ~100 wpm, accelerating videos to 2x or more just gets the audio in the same ~200 wpm range.