Deciding to write a novel about something - as opposed to finding you are writing a novel around something - sounds to me like a good evocation of writer's block.
“And then of course, obviously as far as issues such as global warming, something has to be done on the corporate side, there has to be some mandate or some legislation.”
“On radio and television, magazines and the movies, you can't tell what you're going to get. When you look at the comic page, you can usually depend on something acceptable by the entire family.”