For every two degrees the temperature goes up, check-ins at ice cream shops go up by 2%,” Hogue said. Like an economist, Hogue can quantify exactly when people start hitting museums when it’s cold and beaches when it’s hot. He can even see how people move about the city, and what places they avoid. “In New York, people don’t cross Houston street to go somewhere for lunch. One side is NYU and the other side is shopping and Louis Vuitton.

This is why Foursquare is so great.

How the ‘all-new’ Foursquare is using big data to figure out what you’ll crave next