Carlo Ratti

As people talk, text and browse, telecommunication networks are capturing urban flows in real time and crystallizing them as Google's traffic congestion maps.

Today, for the first time - and the Obama campaign showed us this - we can go from the digital world, from the self-organizing power of networks, to the physical one.

Some trash is recycled, some is thrown away, some ends up where it shouldn't end up.

I thank Marc Jacobs so much for giving me the opportunity to design a shoe for Louis Vuitton, but the thing that broke my heart most was when they said, 'You're finished. The shoe's finished.'

I'm a great believer in poetry out of the classroom, in public places, on subways, trains, on cocktail napkins. I'd rather have my poems on the subway than around the seminar table at an MFA program.

Live Below the Line raises real money to help the world's poorest people, but it is also a symbolic demonstration aimed at highlighting - not replicating - the plight of the world's poor.