Dan Dennett: Responding to Pastor Rick Warren

Cameron Sinclair: A call for open-source architecture

Unveiling the genius of multi-touch interface design | Jeff Han

Why we love, why we cheat | Helen Fisher

The paradox of choice | Barry Schwartz | TED

Why are we happy? Why aren't we happy? | Dan Gilbert

A roadmap to end aging | Aubrey de Grey

Jacqueline Novogratz: Investing in Africa's own solutions

Kevin Kelly: How technology evolves

Do schools kill creativity? | Sir Ken Robinson | TED

Dean Ornish: The world's killer diet

Secrets of success in 8 words, 3 minutes | Richard St. John

If I controlled the Internet | Rives