How can we fit more people into cities without overcrowding? Kent Larson shows off folding cars, quick-change apartments and other innovations that could make the city of the future work a lot like a small village of the past. Originally published in September 2012 from TEDxBoston 2012. Author/Speaker: Kent Larson

Artist Chris Jordan shows us an arresting view of what Western culture looks like. His supersized images picture some almost unimaginable statistics -- like the astonishing number of paper cups we use every single day. Originally published in June 2008 from TED2008. Author/Speaker: Chris Jordan

Bhu Srinivasan researches the intersection of capitalism and technological progress. Instead of thinking about capitalism as a firm, unchanging ideology, he suggests that we should think of it as an operating system -- one that needs upgrades to keep up with innovation, like the impending take-off of drone delivery services. Learn more about the past and future of the free market (and a potential coming identity crisis for the United States' version of capitalism) with this quick, forward-thinking talk.

Why do we dance? African-American social dances started as a way for enslaved Africans to keep cultural traditions alive and retain a sense of inner freedom. They remain an affirmation of identity and independence. In this electric demonstration, packed with live performances, choreographer, educator and TED Fellow Camille A. Brown explores what happens when communities let loose and express themselves by dancing together.