Edward Glaeser - Triumph of the City: how our greatest invention makes us richer, smarter, greener, healthier and happier

Building and maintaining cities is difficult and density has costs, but in this presentation Professor Edward Glaeser will argue that these costs are worth bearing, because whether in London's ornate arcades or Rio's fractious favelas, whether in the high rises of Hong Kong or the dusty workplaces of Dharavi, our culture, our prosperity, and our freedom are all ultimately gifts of people living, working, and thinking together -- the ultimate triumph of the city.