System D is spreading technology around the world at prices even poor people can afford. Squatter communities may be growing, but the informal economy is bringing commerce and opportunity to these neighborhoods that are off the governmental grid. It distributes products more equitably and cheaply than any big company can. And, even as governments around the world are looking to privatize agencies and get out of the business of providing for people, System D is running public services — trash pickup, recycling, transportation, and even utilities.