Lately I’ve been experimenting a lot with the 1.5-speed feature on YouTube.
I’m now watching most videos in speed x1.5 in order to improve my oral comprehension skills with the languages I speak.
I’ve also tried this with Finnish, that I’m currently learning. I can’t understand a thing even in normal speed. But when I watch a video or listen to a song in speed x1.5, and then again in normal speed, it feels like the normal speed is slower than usual.
Probably has something to do with perceived reality.