Over the next 70 years, sociologists estimate that the number of people living in cities will double. Chris Anderson, curator of the TED conference, introduces our urban future.
For decades, urbanists have been thinking about cities as organisms. They take in resources, eject waste, spread and grow. Theoretical physicist Geoffrey West decided to put the idea through the mathematical ringer. So, are cities like organisms? Yes. And no.
If we think of cities as organisms, their DNA is the hodgepodge of rules that shape development. Urban planner Emily Talen talks about how city zoning, coding and laws got started, and how they need to be changed to help us build more livable cities.
In his book, City: A Guidebook for the Urban Age, P.D. Smith writes that city living has shaped humanity's past and laid the foundation for our future.