Part 4: Certainly, Mr. Big Summary and Analysis

This chapter discusses many of Feynman's experiences in Las Vegas, where he frequently ends up for weeks at a time, when being distracted from coast-to-coast road trips. He enjoys Las Vegas since, as he does not gamble, he is able to enjoy the meals, lodging and entertainment the casinos offer at very low prices.

He meets a man who claims to be able to make a comfortable living as a gambler. The gambler offers to share his "gambling secrets" with Feynman. It soon becomes clear Feynman is being scammed. Although Feynman does not fall for the man's machinations, he is fascinated by the way he operates.

However, later he meets a man who does earn his living as a professional gambler, a somewhat famous gambler called Nick the Greek. Feynman wonders how NIck the Greek...