I get up at an unholy hour in the morning my work day is completed by the time the sun rises. I have a slightly bad back which has made an enormous contribution to American literature.
I was proud of working 18 hours a day and sleeping three hours a night. It's something now that has turned into a problem for me: not being able to sleep... having insomnia.
Back when I lived in Brooklyn, I'd sometimes take the Q train all the way out to Coney Island and back, and work on my laptop. There's something about pushy New Yorkers looking over your shoulder that really makes you produce sentences.

