Help me please

Analyze the foot of the following word. use a dictionary if necessary. advise iambic trochaic

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.

What point is the author trying to make by comparing the travel times of the first transcontinental railroad and the first transcontinental flight?