Social Decay

The state of a city and it's culture when it's population is too great and the subsequent infrastructural/behavioral problems that are associated with excess become obvious. Social decay occurs and can be seen on both the physical level of everyday life in a city (abandoned buildings, vacant collapsing houses, streets in poor condition, etc) and on the emotional state of it's inhabitants (narcissism, social anxiety, paranoia, etc). Typically people are generalized into a vast and generic group called "strangers" and these strangers are often ignored completely (by other strangers) in order to keep the city running efficiently and problems associated with poor behavior suppressed. The only time strangers interact with each other is when one stranger offers another stranger a service or something that the other stranger needs or wants.