In the spirit of ideas worth spreading, TEDx is a program of local, self- organized events that bring people together to share a TED-like experience. At a TEDx event, TEDTalks video and live speakers combine to spark deep discussion and connection in a small group. These local, self-organized events are branded TEDx, where x=independently organized TED event. The TED Conference provides general guidance for the TEDx program, but individual TEDx events are self-organized.* (*Subject to certain rules and regulations)

Grzegorz Piątek is an architecture critic, curator and an editor at Architektura-murator magazine. He has written widely on design and architecture, curated a number of successful exhibits, including one at the Venice Architecture Biennale in 2008 and is the Creative Director of Warsaw as a candidate for the title of European Capital of Culture in 2016. Grzegorz talks about a novel idea meant to halt urban sprawl - why not put a ring of mountains around the city. About TEDx, x=independently organized TED event.