"New York now leads the world's great cities in the number of people around whom you shouldn't make a sudden move"

In this quote, David Letterman is making a humorous observation about the bustling city of New York. He suggests that the city is filled with a large number of individuals who are quickly stunned or quickly upset. This might be due to the busy and congested nature of the city, where individuals are continuously on the relocation and may not have the persistence for sudden movements. Letterman's use of the phrase "around whom you shouldn't make an abrupt relocation" implies that these people may react adversely or strongly if somebody were to make a sudden or unanticipated motion near them. Overall, this quote highlights the unique and dynamic atmosphere of New York City, while likewise poking fun at its possible threats.