I think that the economics of book publishing favor hits with long book runs. You make all your money on the last bunch of books, not the first.
When your art fails, make better art.
The people who are the best in the world specialize at getting really good at the questions they don't know.
If you can't sell to 1 in 1000, why market to a million?
It's human nature to quit when it hurts. But it's that reflex that creates scarcity.
Faced with the opportunity to become the category of one, we almost always hesitate, almost always compromise, almost always dumb it down to play it a little bit safer