What strikes me the most about Mr. Salvo’s presentation was the fact that so many variables are predictable, and unpredictable, at the same time. Starting off with predictability, it’s obvious that certain areas would accumulate a certain group of people over time. For example, Bensonhurst in Brooklyn has a high density of Asian immigrants. It’s an obvious factor that new Asian immigrants that arrive will want to be closer with their friends and family in Bensonhurst instead of strangers in East Elmhurst, and thus they would live in Brooklyn.

At the same time, something that people couldn’t see coming was the drastic population shifts within the last four years. According to Mr. Salvo, New York City was able to intake as many, if not more, people in this decade (which hasn’t even reached it’s half mark of 2015 yet) as the previous few decades. Although many people could have predicted that the population would grow in the future, they probably did not expect such a drastic change, as it poses new problems and new opportunities for the city.

Finally, the most interesting part about de Salvo’s presentation was the impact of NYC Subway lines on the population. Who knew that the route of the 7 line would be so pivotal in the population densities of the area. Even though it is common sense that people would want to live close to the train, it is quite unpredictable that transit would have such an influence on how many people live in a certain area.