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18:40

Seth Shostak

ET is (probably) out there — get ready

Posted Jun 2012
5:14

Courtney Stephens

A brief history of melancholy

Posted Oct 2014
14:26

Michael Patrick Lynch

How to see past your own perspective and find truth

Posted Jun 2017
14:59

John Searle

Our shared condition — consciousness

Posted Jul 2013
12:07

Chris Anderson (TED)

Questions no one knows the answers to

Posted Mar 2012
8:05

John Lloyd

An animated tour of the invisible

Posted Sep 2012
6:26

Alanna Shaikh

How I'm preparing to get Alzheimer's

Posted Jul 2012
14:14

Arthur Brooks

A conservative's plea: Let's work together

Posted Mar 2016
17:09

Ken Goldberg

4 lessons from robots about being human

Posted May 2012
15:53

Jennifer Doudna

How CRISPR lets us edit our DNA

Posted Oct 2015
20:17

Jonathan Haidt

Can a divided America heal?

Posted Nov 2016
19:30

Jane McGonigal

The game that can give you 10 extra years of life

Posted Jul 2012
10:20

Grady Booch

Don't fear superintelligent AI

Posted Feb 2017
10:55

Martin Villeneuve

How I made an impossible film

Posted Jun 2013
12:44

Jane Velkovski

The life-changing power of assistive technologies

Posted Dec 2021
12:20

Mindy Fullilove

The ecology of inequality

Posted Oct 2018
16:52

David Fleischer

How to fight prejudice through policy conversations

Posted Oct 2018
18:03

Charles Fleischer

All things are Moleeds

Posted Jan 2010
18:17

Rick Falkvinge

I am a pirate

Posted Apr 2012
13:11

Lizzie Velásquez

How do you define yourself?

Posted Jul 2018
12:43

Melissa Villaseñor

How I found myself — by impersonating other people

Posted Sep 2023
4:55

Leonora Neville

The princess who rewrote history

Posted Oct 2018
13:17

Coleman Hughes

A case for color blindness

Posted Jul 2023
4:51

Pazit Cahlon and Alex Gendler

What "Machiavellian" really means

Posted Mar 2019
5:15

Elizabeth Cox

The hidden treasures of Timbuktu

Posted Oct 2020
9:06

Shweta Narayan

It's impossible to have healthy people on a sick planet

Posted Nov 2021
14:09

Chika Ezeanya-Esiobu

How Africa can use its traditional knowledge to make progress

Posted Oct 2017
11:30

Khulan Batkhuyag

The ancient, earth-friendly wisdom of Mongolian nomads

Posted Sep 2020
18:21

Philip K. Howard

Four ways to fix a broken legal system

Posted Feb 2010
13:59

David Cameron

The next age of government

Posted Feb 2010
7:43

Vilayanur Ramachandran

The neurons that shaped civilization

Posted Jan 2010
8:47

Kiran Bedi

A police chief with a difference

Posted Dec 2010
9:54

Aicha el-Wafi + Phyllis Rodriguez

The mothers who found forgiveness, friendship

Posted May 2011
12:45

Felice Belle and Jennifer Murphy

How we became sisters

Posted Mar 2018
11:48

Sajay Samuel

How college loans exploit students for profit

Posted Jun 2016
13:19

Vinu Daniel

The beauty of building with mud and trash

Posted Jul 2023