When Curator Chris Anderson gave this talk in 2002, TED's future was hanging in the balance. Here, he attempts to persuade TEDsters that his vision for turning his for-profit conference into a nonprofit event would work. It did.

Sir Ken Robinson makes an entertaining and profoundly moving case for creating an education system that nurtures (rather than undermines) creativity.

Juan Enriquez challenges our definition of bioenergy. Oil, coal, gas and other hydrocarbons are not chemical but biological products, based on plant matter -- and thus, growable. Our whole approach to fuel, he argues, needs to change.

Bonnie Bassler discovered that bacteria "talk" to each other, using a chemical language that lets them coordinate defense and mount attacks. The find has stunning implications for medicine, industry -- and our understanding of ourselves.

In this talk from 2003, design critic Don Norman turns his incisive eye toward beauty, fun, pleasure and emotion, as he looks at design that makes people happy. He names the three emotional cues that a well-designed product must hit to succeed

This demo -- from Pattie Maes' lab at MIT, spearheaded by Pranav Mistry -- was the buzz of TED. It's a wearable device with a projector that paves the way for profound interaction with our environment. Imagine "Minority Report" and then some.

Inventor, entrepreneur and visionary Ray Kurzweil explains in abundant, grounded detail why, by the 2020s, we will have reverse-engineered the human brain and nanobots will be operating your consciousness.

At the 2007 EG conference, Kevin Kelly shares a fun stat: The World Wide Web, as we know it, is only 5,000 days old. Now, Kelly asks, how can we predict what's coming in the next 5,000 days?

Barry Schwartz makes a passionate call for "practical wisdom" as an antidote to a society gone mad with bureaucracy. He argues powerfully that rules often fail us, incentives often backfire, and practical, everyday wisdom will help rebuild our world.

Psychologist Barry Schwartz takes aim at a central tenet of western societies: freedom of choice. In Schwartz's estimation, choice has made us not freer but more paralyzed, not happier but more dissatisfied.

Dan Gilbert, author of Stumbling on Happiness, challenges the idea that we'll be miserable if we don't get what we want. Our "psychological immune system" lets us feel truly happy even when things don't go as planned.

A free press -- papers, magazines, radio, TV, blogs -- is the backbone of any true democracy (and a vital watchdog on business). Sasa Vucinic, a journalist from Belgrade, talks about his new fund, which supports media by selling "free press bonds."

Jacek Utko is an extraordinary Polish newspaper designer whose redesigns for papers in Eastern Europe not only win awards, but increase circulation by up to 100%. Can good design save the newspaper? It just might.