Why did johnsy suddenly start counting why on chapter the last leaf

What details of the first two paragraphs convey a sense of the ordinary,behind the scenes routines of film critics?

What is the problem with the following sentence: cameron, who has an extreme and unreasonable suspicion of other people and their motives, suffers from paranoia which is a psychological disorder characterized by delusions of persecution or grandeur, was absolutely sure that someone was following him even though he was absolutely alone and hadn't seen a car for miles and miles.

How can an author reveal move information about a character