Increase or decrease speed using [ and ], without limit in increments of 0.5
This script is active on www.youtube.com/* only and allows you to increase or decrease the playback speed.
Use the '[' key to decrease by 0.5x and the ']' key to increase by the same amount.
A brief overlay is shown over the video with the new set speed.
I personally enjoy watching most narrated videos at 1.5-3x speed, depending on the narrator. This makes it convenient.
Enjoy!