Researcher Hans Rosling uses his cool data tools to show how countries are pulling themselves out of poverty. He demos Dollar Street, comparing households of varying income levels worldwide. Then he does something really amazing.
Microsoft's Stephen Lawler gives a whirlwind tour of Virtual Earth, moving up, down and through its hyper-real cityscapes with dazzlingly fluidity, a remarkable feat that requires staggering amounts of data to bring into focus.
The avant-garde string quartet Ethel performs the third movement from Phil Kline's four-part suite "The Blue Room and Other Stories." Searching melodic lines show off the deep, emotional musicality of these passionate players.
Anand Agarawala presents BumpTop, a user interface that takes the usual desktop metaphor to a glorious, 3-D extreme, transforming file navigation into a freewheeling playground of crumpled documents and clipping-covered "walls."
Blaise Aguera y Arcas leads a dazzling demo of Photosynth, software that could transform the way we look at digital images. Using still photos culled from the Web, Photosynth builds breathtaking dreamscapes and lets us navigate them.
"I don't think we're going to make it," John Doerr says in an emotional talk about climate change and investment. To create a world fit for his daughter to live in, he says, we need to invest now in clean, green energy.
We know the negative images of Africa -- famine and disease, conflict and corruption. But, says Ngozi Okonjo-Iweala, there's another, less-told story happening in many African nations: one of reform, economic growth and business opportunity.
Marine biologist Tierney Thys asks us to step into the water to visit the world of the Mola mola, or giant ocean sunfish. Basking, eating jellyfish and getting massages, this behemoth offers clues to life in the open sea.
Treo creator Jeff Hawkins urges us to take a new look at the brain -- to see it not as a fast processor, but as a memory system that stores and plays back experiences to help us predict, intelligently, what will happen next.
Rural villages worldwide are being deserted, as billions of people flock to cities to live in teeming squatter camps and slums. Stewart Brand says this is a good thing. Why? It'll take you 3 minutes to find out.
IDEO's David Kelley says that product design has become much less about the hardware and more about the user experience. He shows video of this new, broader approach, including footage from the Prada store in New York.
In James Howard Kunstler's view, public spaces should be inspired centers of civic life and the physical manifestation of the common good. Instead, he argues, what we have in America is a nation of places not worth caring about.
Google co-founders Larry Page and Sergey Brin offer a peek inside the Google machine, sharing tidbits about international search patterns, the philanthropic Google Foundation, and the company's dedication to innovation and employee happiness.
Featuring the vocals and mischievous bell-playing of accordionist and singer Rachelle Garniez, the TED House Band -- led by Thomas Dolby on keyboard -- delivers this delightful rendition of the Edith Piaf standard "La Vie en Rose."
Satirist Tom Rielly delivers a wicked parody of the 2006 TED conference, taking down the $100 laptop, the plight of the polar bear, and people who mention, one too many times, that they work at Harvard. Watch for a special moment between Tom and Al Gore.
Caroline Lavelle plays the cello like a sorceress casting a spell, occasionally hiding behind her wild mane of blond hair as she sings of pastoral themes. She performs "Farther than the Sun," backed by Thomas Dolby on keyboards.