It is no good getting furious if you get stuck. What I do is keep thinking about the problem but work on something else. Sometimes it is years before I see the way forward. In the case of information loss and black holes, it was 29 years.
“Most New Yorkers want to look amazing, and they want you to understand that they look amazing, but they also want you to stop staring at them.”
“And if we must educate our poets and artists in science, we must educate our masters, labour and capital, in art.”