The reader has certain rights. He bought your story. Think of this as an implicit contract. He's entitled to be entertained, instructed, amused; maybe all three. If he quits in the middle, or puts the book down feeling his time has been wasted, you're in violation.
Larry NivenHopeless causes are the only ones worth fighting for. The fight for the taxpayer is the most hopeless of them all.
Larry Niven