Making the case for collective intelligence, Hu Liang offers a case study of an investment program that incorporated social media crowd-sourcing and produced dramatically improved performance over typical trading systems.
Leah Chase's New Orleans restaurant Dooky Chase changed the course of American history over gumbo and fried chicken. During the civil rights movement, it was a place where white and black people came together, where activists planned protests and where the police entered but did not disturb -- and it continues to operate in the same spirit today...
Crisis interventions often focus on a single aspect of a big, complicated problem, failing to address the broader social and economic context. Kwame Owusu-Kesse describes how the Harlem Children's Zone is taking a more holistic approach to the pandemic, weaving together a network of services to help communities recover and rebuild. Learn more ab...
Conventional vaccine testing is a slow, years-long process. As thousands of people continue to die each day from COVID-19, bioethicist Nir Eyal proposes a radical idea that could dramatically accelerate the vaccine development timeline: "human challenge trials," in which scientists would deliberately expose volunteers to the virus to more quickl...
In his former life as a police officer, Michael Arntfield spent sleepless nights thinking about the increasing numbers of unsolved murders that ended up in oft-ignored cold case files. In this talk, he describes how that personal crisis prompted him to create one of the most unique citizen-driven clubs in the world, leveraging the skills of regu...
Caroline Casey works relentlessly to bring out a global shift in business inclusion, and ensure that everyone can live their life without limit or labels.
"Ideas can and do change the world," says historian Rutger Bregman, sharing his case for a provocative one: guaranteed basic income. Learn more about the idea's 500-year history and a forgotten modern experiment where it actually worked -- and imagine how much energy and talent we would unleash if we got rid of poverty once and for all.
As a breeze blows through the savannah, a snake-shaped tube stretches into the air and scans the horizon like a periscope. But it's not seeing— it's sniffing. Containing no bones and an estimated 40,000 muscles, an elephant trunk is one of the most versatile tools in the animal kingdom. Chase LaDue and Bruce Schulte detail the incredible capabil...
Biodesigner Natsai Audrey Chieza prototypes the future, imagining a world where people and nature can thrive together. In this wildly imaginative talk, she shares the vision behind her innovation lab, which works at the intersection of nature, technology and society to create sustainable materials and models for the future. Chieza invites us to ...
Ignite your curiosity with these TED Talks certain to motivate the mind, reshape perspectives and inspire ideas worth spreading. (Curated in partnership with Lexus.)
Natsai Audrey Chieza is a designer on a mission -- to reduce pollution in the fashion industry while creating amazing new things to wear. In her lab, she noticed that the bacteria Streptomyces coelicolor makes a striking red-purple pigment, and now she's using it to develop bold, color-fast fabric dye that cuts down on water waste and chemical r...
In the vast sweep of history, even an empire can be forgotten. In this wide-ranging talk, Gus Casely-Hayford shares origin stories of Africa that are too often unwritten, lost, unshared. Travel to Great Zimbabwe, the ancient city whose mysterious origins and advanced architecture continue to confound archeologists. Or to the age of Mansa Musa, t...
Curious about the world? These fascinating talks will encourage you to seek and experience the endless delight and intrigue it offers. (Curated in partnership with the Qatar Foundation.)
Noah Feldman makes a searing case that both politics and religion -- whatever their differences -- are similar technologies, designed to efficiently connect and manage any group of people.
Reddit co-founder Alexis Ohanian picks 9 talks on the global idea flow. He says, "On an open Internet, where all links are created equal, good ideas win. Anyone, anywhere can share an idea that can be seen by millions."
Biologist Richard Dawkins makes a case for "thinking the improbable" by looking at how the human frame of reference limits our understanding of the universe.
Neuropsychologist Kim Gorgens makes the case for better protecting our brains against the risk of concussion -- with a compelling pitch for putting helmets on kids.
What's the difference between a pest and a bug? Shimon Steinberg makes the case for using good bugs to fight bad bugs, avoiding chemicals in our quest for perfect produce.
Jamais Cascio follows the threads of civilization's intended (and unintended) consequences into an unpredictable future, bringing back glimpses of a green world wired beyond our wildest dreams.
Contraception. The topic has become controversial in recent years. But should it be? Melinda Gates believes that many of the world's social change issues depend on ensuring that women are able to control their rate of having kids. In this significant talk at TEDxChange, she makes the case for the world to re-examine an issue she intends to lend ...