The really interesting moment will be when you have a critical mass of people engaging through the networks, more than through the press and TV. When that happens, the culture of politics has to change, moving away from controlled one-way messages towards a political culture that is more questioning.

All innovation is about letting go, saying goodbye to things to create space for the new.

I can think of nothing worse than a think-tank where everybody agreed.

Cities simply don't have the powers they need to radically innovate in cutting obesity or the number of disaffected teenagers.

The most dynamic cities have always been immersed in the critical innovations of their time.

Societies advance through innovation every bit as much as economies do.

Understanding capitalism is in some ways simple. At its best, capitalism rewards creators, makers and providers: the people and firms that create valuable things for others, like imaginative technologies and good food, cars and drugs.