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.
“In the name of Hypocrites, doctors have invented the most exquisite form of torture ever known to man: survival.”
“I have not really experienced any significant conflict with anyone in regard to my choice to be vegan, although going out to eat is hard sometimes.”