Even as a sighted individual, listening to conference talks at high speed is convenient (and you can still pause if you want to look deeper into something).
document.querySelector('video').playbackRate = 3
javascript:(function(){document.querySelector('video').playbackRate = 3;})();https://chrome.google.com/webstore/detail/video-speed-contro...
I tried understanding the reader in the article and found I could only catch about every third or fourth word, even though I do often watch videos at 2x (and I did actually used to use VLC for speeding up videos in the pre-YouTube speed option days). I'd need a lot more practice to grok speech at that speed.