TED Talk

March 19, 2019
What prosecutors and incarcerated people can learn from each other | Jarrell Daniels

What prosecutors and incarcerated people can learn from each other | Jarrell Daniels

A few weeks before his release from prison, Jarrell Daniels took a class where incarcerated men learned alongside prosecutors. By simply sitting together and talking, they uncovered surprising truths about the criminal justice system and ideas for how real change happens. Now a scholar and...

My identity is a superpower -- not an obstacle | America Ferrera

My identity is a superpower -- not an obstacle | America Ferrera

Hollywood needs to stop resisting what the world actually looks like, says actor, director and activist America Ferrera. Tracing the contours of her career, she calls for more authentic representation of different cultures in media -- and a shift in how we tell our stories. "Presence creates...

The anti-CEO playbook | Hamdi Ulukaya

The anti-CEO playbook | Hamdi Ulukaya

Profit, money, shareholders: these are the priorities of most companies today. But at what cost? In an appeal to corporate leaders worldwide, Chobani founder Hamdi Ulukaya calls for an end to the business playbook of the past -- and shares his vision for a new, "anti-CEO playbook" that...

The next global agricultural revolution | Bruce Friedrich

The next global agricultural revolution | Bruce Friedrich

Conventional meat production causes harm to our environment and presents risks to global health, but people aren't going to eat less meat unless we give them alternatives that cost the same (or less) and that taste the same (or better). In an eye-opening talk, food innovator and TED Fellow...

Sloths! The strange life of the world's slowest mammal | Lucy Cooke

Sloths! The strange life of the world's slowest mammal | Lucy Cooke

Sloths have been on this planet for more than 40 million years. What's the secret to their success? In a hilarious talk, zoologist Lucy Cooke takes us inside the strange life of the world's slowest mammal and shows what we can learn from their ingenious adaptations.

How to build your confidence -- and spark it in others | Brittany Packnett

How to build your confidence -- and spark it in others | Brittany Packnett

"Confidence is the necessary spark before everything that follows," says educator and activist Brittany Packnett. In an inspiring talk, she shares three ways to crack the code of confidence -- and her dream for a world where revolutionary confidence helps turn our most ambitious dreams...

The difference between healthy and unhealthy love | Katie Hood

The difference between healthy and unhealthy love | Katie Hood

In a talk about understanding and practicing the art of healthy relationships, Katie Hood reveals the five signs you might be in an unhealthy relationship -- with a romantic partner, a friend, a family member -- and shares the things you can do every day to love with respect, kindness and joy....

How AI could become an extension of your mind | Arnav Kapur

How AI could become an extension of your mind | Arnav Kapur

Try talking to yourself without opening your mouth, by simply saying words internally. What if you could search the internet like that -- and get an answer back? In the first live public demo of his new technology, TED Fellow Arnav Kapur introduces AlterEgo: a wearable AI device with the potential...

What you should know about vaping and e-cigarettes | Suchitra Krishnan-Sarin

What you should know about vaping and e-cigarettes | Suchitra Krishnan-Sarin

E-cigarettes and vapes have exploded in popularity in the last decade, especially among youth and young adults -- from 2011 to 2015, e-cigarette use among high school students in the US increased by 900 percent. Biobehavioral scientist Suchitra Krishnan-Sarin explains what you're actually...

Could a tattoo help you stay healthy? | Carson Bruns

Could a tattoo help you stay healthy? | Carson Bruns

Can we make tattoos both beautiful and functional? Nanotechnologist Carson Bruns shares his work creating high-tech tattoos that react to their environment -- like color-changing ink that can tell you when you're getting a sunburn -- and shows exciting ways they can deliver real-time...

Digital humans that look just like us | Doug Roble

Digital humans that look just like us | Doug Roble

In an astonishing talk and tech demo, software researcher Doug Roble debuts "DigiDoug": a real-time, 3-D, digital rendering of his likeness that's accurate down to the scale of pores and wrinkles. Powered by an inertial motion capture suit, deep neural networks and enormous amounts...

Sleep is your superpower | Matt Walker

Sleep is your superpower | Matt Walker

Sleep is your life-support system and Mother Nature's best effort yet at immortality, says sleep scientist Matt Walker. In this deep dive into the science of slumber, Walker shares the wonderfully good things that happen when you get sleep -- and the alarmingly bad things that happen when you...

How your brain's executive function works -- and how to improve it | Sabine Doebel

How your brain's executive function works -- and how to improve it | Sabine Doebel

You use your brain's executive function every day -- it's how you do things like pay attention, plan ahead and control impulses. Can you improve it to change for the better? With highlights from her research on child development, cognitive scientist Sabine Doebel explores the factors that...

The case for having kids | Wajahat Ali

The case for having kids | Wajahat Ali

The global fertility rate, or the number of children per woman, has halved over the last 50 years. What will having fewer babies mean for the future of humanity? In this funny, eye-opening talk, journalist (and self-described exhausted dad) Wajahat Ali examines how the current trend could lead to...

The crisis of leadership -- and a new way forward | Halla Tómasdóttir and Bryn Freedman

The crisis of leadership -- and a new way forward | Halla Tómasdóttir and Bryn Freedman

What should modern leadership look like? Entrepreneur and former Icelandic presidential candidate Halla Tómasdóttir thinks global leaders need to change their ways -- or risk becoming irrelevant. In a conversation with curator Bryn Freedman, she shows how anybody can step up and make a difference,...

How to revive your belief in democracy | Eric Liu

How to revive your belief in democracy | Eric Liu

Civic evangelist Eric Liu shares a powerful way to rekindle the spirit of citizenship and the belief that democracy still works. Join him for a trip to "Civic Saturday" and learn more about how making civic engagement a weekly habit can help build communities based on shared values and a...

Everything around you can become a computer | Ivan Poupyrev

Everything around you can become a computer | Ivan Poupyrev

Designer Ivan Poupyrev wants to integrate technology into everyday objects to make them more useful and fun -- like a jacket you can use to answer phone calls or a houseplant you can play like a keyboard. In a talk and tech demo, he lays out his vision for a physical world that's more deeply...

Mind-blowing stage sculptures that fuse music and technology | Es Devlin

Mind-blowing stage sculptures that fuse music and technology | Es Devlin

It starts with a sketch. Then it evolves into a larger-than-life visual masterpiece, a celebration of human connection. Follow along as legendary artist and designer Es Devlin takes us on a visual tour of her work -- including iconic stage sculptures she's created for Beyoncé, Adele, Kanye...

How supercharged plants could slow climate change | Joanne Chory

How supercharged plants could slow climate change | Joanne Chory

Plants are amazing machines -- for millions of years, they've taken carbon dioxide out of the air and stored it underground, keeping a crucial check on the global climate. Plant geneticist Joanne Chory is working to amplify this special ability: with her colleagues at the Salk Plant Molecular...

Why we ignore obvious problems -- and how to act on them | Michele Wucker

Why we ignore obvious problems -- and how to act on them | Michele Wucker

Why do we often neglect big problems, like the financial crisis and climate change, until it's too late? Policy strategist Michele Wucker urges us to replace the myth of the "black swan" -- that rare, unforeseeable, unavoidable catastrophe -- with the reality of the "gray...

How to recover from activism burnout | Yana Buhrer Tavanier

How to recover from activism burnout | Yana Buhrer Tavanier

When you're feeling burned out as an activist, what's the best way to bounce back? TED Senior Fellow Yana Buhrer Tavanier explores the power of "playtivism" -- the incorporation of play and creativity into movements for social change. See how this versatile approach can spark...

Three ideas. Three contradictions. Or not. | Hannah Gadsby

Three ideas. Three contradictions. Or not. | Hannah Gadsby

Hannah Gadsby's groundbreaking special "Nanette" broke comedy. In a talk about truth and purpose, she shares three ideas and three contradictions. Or not.

Helping others makes us happier -- but it matters how we do it | Elizabeth Dunn

Helping others makes us happier -- but it matters how we do it | Elizabeth Dunn

Research shows that helping others makes us happier. But in her groundbreaking work on generosity and joy, social psychologist Elizabeth Dunn found that there's a catch: it matters how we help. Learn how we can make a greater impact -- and boost our own happiness along the way -- if we make...

The surprising connection between brain injuries and crime | Kim Gorgens

The surprising connection between brain injuries and crime | Kim Gorgens

Here's a shocking statistic: 50 to 80 percent of people in the criminal justice system in the US have had a traumatic brain injury. In the general public, that number is less than five percent. Neuropsychologist Kim Gorgens shares her research into the connection between brain trauma and the...

How generational stereotypes hold us back at work | Leah Georges

How generational stereotypes hold us back at work | Leah Georges

The Silent Generation, baby boomers, Generation X, millennials, Gen Z -- we're all in the workforce together. How are our assumptions about each other holding us back from working and communicating better? Social psychologist Leah Georges shows how we're more similar than different and...

Can we cure genetic diseases by rewriting DNA? | David R. Liu

Can we cure genetic diseases by rewriting DNA? | David R. Liu

In a story of scientific discovery, chemical biologist David R. Liu shares a breakthrough: his lab's development of base editors that can rewrite DNA. This crucial step in genome editing takes the promise of CRISPR to the next level: if CRISPR proteins are molecular scissors, programmed to cut...

A personal air-quality tracker that lets you know what you're breathing | Romain Lacombe

A personal air-quality tracker that lets you know what you're breathing | Romain Lacombe

How often do you think about the air you're breathing? Probably not enough, says entrepreneur and TED Fellow Romain Lacombe. He introduces Flow: a personal air-quality tracker that fits in your hand and monitors pollution levels in real time. See how this device could help you track and...

How hip-hop helps us understand science | Danielle N. Lee

How hip-hop helps us understand science | Danielle N. Lee

In the early 1990s, a scandal rocked evolutionary biology: scientists discovered that songbirds -- once thought to be strictly monogamous -- engaged in what's politely called "extra-pair copulation." In this unforgettable biology lesson on animal infidelity, TED Fellow Danielle N....

Inside the black hole image that made history | Sheperd Doeleman

Inside the black hole image that made history | Sheperd Doeleman

At the center of a galaxy more than 55 million light-years away, there's a supermassive black hole with the mass of several billion suns. And now, for the first time ever, we can see it. Astrophysicist Sheperd Doeleman, head of the Event Horizon Telescope collaboration, speaks with TED's...

How Twitter needs to change | Jack Dorsey

How Twitter needs to change | Jack Dorsey

Can Twitter be saved? In a wide-ranging conversation with TED's Chris Anderson and Whitney Pennington Rodgers, Twitter CEO Jack Dorsey discusses the future of the platform -- acknowledging problems with harassment and moderation and proposing some fundamental changes that he hopes will...

Facebook's role in Brexit -- and the threat to democracy | Carole Cadwalladr

Facebook's role in Brexit -- and the threat to democracy | Carole Cadwalladr

In an unmissable talk, journalist Carole Cadwalladr digs into one of the most perplexing events in recent times: the UK's super-close 2016 vote to leave the European Union. Tracking the result to a barrage of misleading Facebook ads targeted at vulnerable Brexit swing voters -- and linking the...

The artificial muscles that will power robots of the future | Christoph Keplinger

The artificial muscles that will power robots of the future | Christoph Keplinger

Robot brains are getting smarter and smarter, but their bodies are often still clunky and unwieldy. Mechanical engineer Christoph Keplinger is designing a new generation of soft, agile robot inspired by a masterpiece of evolution: biological muscle. See these "artificial muscles" expand...

Empower a girl, transform a community | Kakenya Ntaiya

Empower a girl, transform a community | Kakenya Ntaiya

Kakenya Ntaiya turned her dream of getting an education into a movement to empower vulnerable girls and bring an end to harmful traditional practices in Kenya. Meet two students at the Kakenya Center for Excellence, a school where girls can live and study safely -- and uplift their community along...

3 lessons on starting a movement from a self-defense trailblazer | Rana Abdelhamid

3 lessons on starting a movement from a self-defense trailblazer | Rana Abdelhamid

At 16, Rana Abdelhamid started teaching self-defense to women and girls in her neighborhood. Almost 10 years later, these community classes have grown into Malikah: a global grassroots network creating safety, power and solidarity for all women. How did she do it? Abdelhamid shares three...

How risk-taking changes a teenager's brain | Kashfia Rahman

How risk-taking changes a teenager's brain | Kashfia Rahman

Why do teenagers sometimes make outrageous, risky choices? Do they suddenly become reckless, or are they just going through a natural phase? To find out, Kashfia Rahman -- winner of the Intel International Science and Engineering Fair (and a Harvard freshman) -- designed and conducted an experiment...

Wearable tech that helps you navigate by touch | Keith Kirkland

Wearable tech that helps you navigate by touch | Keith Kirkland

Keith Kirkland is developing wearable tech that communicates information using only the sense of touch. He's trying to figure out: What gestures and vibration patterns could intuitively communicate ideas like "stop" or "go"? Check out his team's first product, a...

We don't "move on" from grief. We move forward with it | Nora McInerny

We don't "move on" from grief. We move forward with it | Nora McInerny

In a talk that's by turns heartbreaking and hilarious, writer and podcaster Nora McInerny shares her hard-earned wisdom about life and death. Her candid approach to something that will, let's face it, affect us all, is as liberating as it is gut-wrenching. Most powerfully, she encourages...

How to lead a conversation between people who disagree | Eve Pearlman

How to lead a conversation between people who disagree | Eve Pearlman

In a world deeply divided, how do we have hard conversations with nuance, curiosity, respect? Veteran reporter Eve Pearlman introduces "dialogue journalism": a project where journalists go to the heart of social and political divides to support discussions between people who disagree. See...

An AI smartwatch that detects seizures | Rosalind Picard

An AI smartwatch that detects seizures | Rosalind Picard

Every year worldwide, more than 50,000 otherwise healthy people with epilepsy suddenly die -- a condition known as SUDEP. These deaths may be largely preventable, says AI researcher Rosalind Picard. Learn how Picard helped develop a cutting-edge smartwatch that can detect epileptic seizures as they...

What refugees need to start new lives | Muhammed Idris

What refugees need to start new lives | Muhammed Idris

Every minute, 20 people are newly displaced by climate change, economic crisis and political instability, according to the UNHCR. How can we help them overcome the barriers to starting new lives? TED Resident Muhammed Idris is leading a team of technologists, researchers and refugees to develop...

Public art that turns cities into playgrounds of the imagination | Helen Marriage

Public art that turns cities into playgrounds of the imagination | Helen Marriage

Visual artist Helen Marriage stages astonishing, large-scale public art events that expand the boundaries of what's possible. In this visual tour of her work, she tells the story of three cities she transformed into playgrounds of the imagination -- picture London with a giant mechanical...

How does income affect childhood brain development? | Kimberly Noble

How does income affect childhood brain development? | Kimberly Noble

Neuroscientist and pediatrician Kimberly Noble is leading the Baby's First Years study: the first-ever randomized study of how family income changes children's cognitive, emotional and brain development. She and a team of economists and policy experts are working together to find out: Can...

How centuries of sci-fi sparked spaceflight | Alexander MacDonald

How centuries of sci-fi sparked spaceflight | Alexander MacDonald

Long before we had rocket scientists, the idea of spaceflight traveled from mind to mind across generations. With great visuals, TED Fellow and NASA economist Alexander MacDonald shows how 300 years of sci-fi tales -- from Edgar Allan Poe to Jules Verne to H.G. Wells and beyond -- sparked a culture...

Can we regenerate heart muscle with stem cells? | Chuck Murry

Can we regenerate heart muscle with stem cells? | Chuck Murry

The heart is one of the least regenerative organs in the human body -- a big factor in making heart failure the number one killer worldwide. What if we could help heart muscle regenerate after injury? Physician and scientist Chuck Murry shares his groundbreaking research into using stem cells to...

"East Virginia" / "John Brown's Dream" | Nora Brown

"East Virginia" / "John Brown's Dream" | Nora Brown

In a mesmerizing set, musician Nora Brown breathes new life into two old-time banjo tunes: "East Virginia" and "John Brown's Dream." An evocative performance paired with a quick history of the banjo's evolution.

A short history of trans people's long fight for equality | Samy Nour Younes

A short history of trans people's long fight for equality | Samy Nour Younes

Transgender activist and TED Resident Samy Nour Younes shares the remarkable, centuries-old history of the trans community, filled with courageous stories, inspiring triumphs -- and a fight for civil rights that's been raging for a long time. "Imagine how the conversation would shift if...

To detect diseases earlier, let's speak bacteria's secret language | Fatima AlZahra'a Alatraktchi

To detect diseases earlier, let's speak bacteria's secret language | Fatima AlZahra'a Alatraktchi

Bacteria "talk" to each other, sending chemical information to coordinate attacks. What if we could listen to what they were saying? Nanophysicist Fatima AlZahra'a Alatraktchi invented a tool to spy on bacterial chatter and translate their secret communication into human language....

A new class of drug that could prevent depression and PTSD | Rebecca Brachman

A new class of drug that could prevent depression and PTSD | Rebecca Brachman

Current treatments for depression and PTSD only suppress symptoms, if they work at all. What if we could prevent these diseases from developing altogether? Neuroscientist and TED Fellow Rebecca Brachman shares the story of her team's accidental discovery of a new class of drug that, for the...

What it's like to have Tourette's -- and how music gives me back control | Esha Alwani

What it's like to have Tourette's -- and how music gives me back control | Esha Alwani

Esha Alwani began writing songs when she was six years old, shortly after being diagnosed with Tourette syndrome. And she noticed something amazing: whenever she played music, her involuntary tics suddenly went away. Listen along as Alwani explores the power of music and delights the audience with...

The beautiful future of solar power | Marjan van Aubel

The beautiful future of solar power | Marjan van Aubel

The Sun delivers more energy to Earth in one hour than all of humanity uses in an entire year. How can we make this power more accessible to everyone, everywhere? Solar designer Marjan van Aubel shows how she's turning everyday objects like tabletops and stained glass windows into elegant...

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