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7:09
Becky Blanton
The year I was homeless
15:48
Clay Shirky
How social media can make history
3:05
Cameron Sinclair
The refugees of boom-and-bust
20:45
Barry Schwartz
Our loss of wisdom
18:38
Liz Coleman
A call to reinvent liberal arts education
8:00
Evan Williams
The voices of Twitter users
3:50
Pete Alcorn
The world in 2200
3:47
Gregory Petsko
The coming neurological epidemic
17:31
Patrick Awuah
How to educate leaders? Liberal arts
21:56
James Nachtwey
My wish: Let my photographs bear witness
15:31
Jeff Skoll
My journey into movies that matter
25:38
Jehane Noujaim
My wish: A global day of film
18:35
Phil Borges
Photos of endangered cultures
14:08
Peter Gabriel
Fight injustice with raw video
17:37
Nicholas Negroponte
One Laptop per Child
16:15
Jamais Cascio
Tools for a better world
17:18
Neil Gershenfeld
Unleash your creativity in a Fab Lab
14:03
Robert Neuwirth
The hidden world of shadow cities
17:26
Martin Rees
Is this our final century?
17:52
Yochai Benkler
The new open-source economics
20:46
Clay Shirky
Institutions vs. collaboration
27:52
Bono
My wish: Three actions for Africa
34:25
Edward Burtynsky
My wish: Manufactured landscapes and green education
16:59
James Surowiecki
The power and the danger of online crowds
18:21
Jared Diamond
Why do societies collapse?
12:25
Lee Smolin
Science and democracy
15:07
Noah Feldman
Politics and religion are technologies
20:07
Dean Kamen
To invent is to give
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