William Mitchell is director of the MIT Design Laboratory, where he heads up the Smart Cities research group. The team is investigating how buildings and cities can respond more intelligently to their inhabitants. One of their recent projects is the CityCar Concept, a program involving stackable, electric vehicles that can be shared by urban residents. Hear Mitchell speak about “Technologies of Smart Sustainability” at the 2007 Innovation Conference. Photo: © Franco Vairani CityCar Concept vehicles Watch as Bryant Rousseau speaks with Mitchell about the future of cities, how to improve architecture schools, his SmartCar project, the great need today for