It's part of the calling to at least do a few songs in the show that give people some hope. There's so much hurt in this world and... music is such a great healing balm and a great way to forget your troubles.
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.
