[viraptor]

> Andrej's talk seemed normal to listen at 2x but I've also listened to everything at 2x for a long time.

We get used to higher speeds when we consume a lot of content that way. Have you heard the systems used by experienced blind people? I cannot even understand the words in them, but months of training would probably fix that.

[userbinator]

You can achieve a similar, less permanent effect by closing your eyes; I often do it when I'm on a call and the person on the other end is extremely difficult to understand.