Having fewer places in town results in meeting people you know more often. Having fewer people doesn't - your probability of meeting someone is the number of pe

Having fewer places in town results in meeting people you know more often. Having fewer people doesn't - your probability of meeting someone is the number of people you know (which is arguably larger in a city) divided by the number of places they could be. The number of people you don't know in a place is mostly irrelevant.