George Steiner

It's fun and super exciting to see how other people work, how other people write music, and how other people put things together. To me, it's an endless learning process, and I love doing it because everybody works so completely differently.

The idea of critical windows extends beyond just vision, of course: almost every system in the brain has a critical window when it needs to experience certain stimuli, or it won't get wired up properly. The most obvious example is language: if you don't learn a language early on, it's nigh impossible to become truly fluent.