Novelists are stamina merchants, grinders, nine-to-fivers, and their career curves follow the usual arc of human endeavour.
I can walk through the front door of any factory and out the back and tell you if it's making money or not. I can just tell by the way it's being run and by the spirit of the workers.
I'm also not going to explain something just because I said it in a rap. Take what you want from it.