That's not a utopian vision. It is a set of ideas that we think are important to discuss. Those ideas largely have to do with sustainability of cities. The ability of cities to, over time, remain in balance with the resource streams that are available to them, and they have to do with social justice and equity of the fundamental conditions of satisfactory citizenship.

Automobile is one of the most successful inventions of all time, but in my view, it is thoroughly obsolete already. And so by fundamentally rethinking the automobile, thinking of it as a robot on four wheels, essentially, something that can communicate with other intelligent devices, it can operate in a coordinated way, you can really start to fundamentally rethink urban personal mobility.

Everybody thinks an automobile needs an engine. Well, an automobile doesn't necessarily need an engine. What we do is shift electric motors into the wheels of our automobiles and so we have a completely different kind of thing where we have four independent intelligent wheels rather than a traditional internal combustion engine and power train and so on.

We [MIT Smart Cities research group] try to identify the fundamental underlying design assumptions that everybody takes as a sort of given and unchallengeable when you think about solving these problems. And we try to challenge those assumptions.

Photography is and is not a language; language also is and is not a photography.

There is no magical solution because urban traffic congestion arises from the fact that a lot of people want to be in the same place at the same time often.

An interlude of false innocence has passed. Today, as we enter the post-photographic era, we must face once again the ineradicable fragility of our ontological distinctions between the imaginary and the real, and the tragic elusiveness of the Cartesian dream. We have indeed learnt to fix the shadows, but not to secure their meanings or to stabilize their truth values; they still flicker on the walls of Plato's cave.