>"By 2050, more than 66 percent of the world's population will be living in so-called "smart cities." These are metropolitan areas where everything will be digi

>"By 2050, more than 66 percent of the world's population will be living in so-called "smart cities." These are metropolitan areas where everything will be digitally connected. ... we'll have smart hospitals, farms, and highways, and it's likely they'll all talk to one another. Connected devices will monitor everything from air quality to energy usage and traffic congestion." This sounds silly. Where's the margin in all these devices and connections?