TED is a nonprofit devoted to ideas worth spreading. On this video feed, you'll find TED Talks to inspire, intrigue and stir the imagination from some of the world's leading thinkers and doers, speaking from the stage at TED conferences, TEDx events and partner events around the world. This podcast is also available in high-def video and audio-only formats.
The political power of being a good neighbor | Michael Tubbs
Michael Tubbs is the youngest mayor in American history to represent a city with more than 100,000 people -- and his policies are sparking national conversations. In this rousing talk, he shares how growing up amid poverty and violence in Stockton, California shaped his bold vision for change and his commitment to govern as a neighbor, not a politician. "When we see someone different from us, they should not reflect our fears, our anxieties, our insecurities," he says. "We should see our common humanity."
Daniel Lismore's closet is probably a bit different than yours -- his clothes are constructed out of materials ranging from beer cans and plastic crystals to diamonds, royal silks and 2,000-year-old Roman rings. In this striking talk, Lismore shares the vision behind his elaborate ensembles and explores what it's like to live life as a work of art. "Everyone is capable of creating their own masterpiece," he says. "You should try it sometime."
Why we get mad -- and why it's healthy | Ryan Martin
Anger researcher Ryan Martin draws from a career studying what makes people mad to explain some of the cognitive processes behind anger -- and why a healthy dose of it can actually be useful. "Your anger exists in you ... because it offered your ancestors, both human and nonhuman, an evolutionary advantage," he says. "[It's] a powerful and healthy force in your life."
The mysterious microbes living deep inside the earth -- and how they could help humanity | Karen Lloyd
The ground beneath your feet is home to a massive, mysterious world of microbes -- some of which have been in the earth's crust for hundreds of thousands of years. What's it like down there? Take a trip to the volcanoes and hot springs of Costa Rica as microbiologist Karen Lloyd shines a light on these subterranean organisms and shows how they could have a profound impact on life up here.
The most detailed map of galaxies, black holes and stars ever made | Juna Kollmeier
Humans have been studying the stars for thousands of years, but astrophysicist Juna Kollmeier is on a special mission: creating the most detailed 3-D maps of the universe ever made. Journey across the cosmos as she shares her team's work on the Sloan Digital Sky Survey, imaging millions of stars, black holes and galaxies in unprecedented detail. If we maintain our pace, she says, we can map every large galaxy in the observable universe by 2060. "We've gone from arranging clamshells to general relativity in a few thousand years," she says. "If we hang on 40 more, we can map all the galaxies."
Reading and writing can be acts of courage that bring us closer to others and ourselves. Author Michelle Kuo shares how teaching reading skills to her students in the Mississippi Delta revealed the bridging power of the written word -- as well as the limitations of its power.
The lies our culture tells us about what matters -- and a better way to live | David Brooks
Our society is in the midst of a social crisis, says op-ed columnist and author David Brooks: we're trapped in a valley of isolation and fragmentation. How do we find our way out? Based on his travels across the United States -- and his meetings with a range of exceptional people known as "weavers" -- Brooks lays out his vision for a cultural revolution that empowers us all to lead lives of greater meaning, purpose and joy.
"Everything happens for a reason" -- and other lies I've loved | Kate Bowler
In life's toughest moments, how do you go on living? Kate Bowler has been exploring this question ever since she was diagnosed with stage IV cancer at age 35. In a profound, heartbreaking and unexpectedly funny talk, she offers some answers -- challenging the idea that "everything happens for a reason" and sharing hard-won wisdom about how to make sense of the world after your life is suddenly, completely changed. "I believe that in the darkness, even there, there will be beauty and there will be love," she says.
Floating cities, the LEGO House and other architectural forms of the future | Bjarke Ingels
Design gives form to the future, says architect Bjarke Ingels. In this worldwide tour of his team's projects, journey to a waste-to-energy power plant (that doubles as an alpine ski slope) and the LEGO Home of the Brick in Denmark -- and catch a glimpse of cutting-edge flood resilience infrastructure in New York City as well as an ambitious plan to create floating, sustainable cities that are adapted to climate change.
The amazing brains and morphing skin of octopuses and other cephalopods | Roger Hanlon
Octopus, squid and cuttlefish -- collectively known as cephalopods -- have strange, massive, distributed brains. What do they do with all that neural power? Dive into the ocean with marine biologist Roger Hanlon, who shares astonishing footage of the camouflaging abilities of cephalopods, which can change their skin color and texture in a flash. Learn how their smart skin, and their ability to deploy it in sophisticated ways, could be evidence of an alternative form of intelligence -- and how it could lead to breakthroughs in AI, fabrics, cosmetics and beyond.
The story we tell about millennials -- and who we leave out | Reniqua Allen
Millennials are now the largest, most diverse adult population in the US -- but far too often, they're reduced to the worn-out stereotype of lazy, entitled avocado toast lovers, says author Reniqua Allen. In this revealing talk, she shares overlooked stories of millennials of color, offering a broader, more nuanced view of the generation. "Millennials are not a monolith," she says.
What it takes to launch a telescope | Erika Hamden
TED Fellow and astronomer Erika Hamden leads the team building FIREBall, a telescope that hangs from a giant balloon at the very edge of space and looks for clues about how stars are created. She takes us inside the roller-coaster, decade-long journey to get the telescope from an idea into orbit -- and shows how failure is inevitable when you're pushing the limits of knowledge.
How to deconstruct racism, one headline at a time | Baratunde Thurston
Baratunde Thurston explores the phenomenon of white Americans calling the police on black Americans who have committed the crimes of ... eating, walking or generally "living while black." In this profound, thought-provoking and often hilarious talk, he reveals the power of language to change stories of trauma into stories of healing -- while challenging us all to level up.
Humans produce 300 million tons of new plastic each year -- yet, despite our best efforts, less than 10 percent of it ends up being recycled. Is there a better way to deal with all this waste? Morgan Vague describes her research with microbiologist Jay Mellies on bacteria that have evolved the unexpected ability to eat plastic -- and how they could help us solve our growing pollution problem.
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 activist, Daniels reflects on how collaborative education could transform the justice system and unlock solutions to social problems.
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 possibility," she says. "Who we see thriving in the world teaches us how to see ourselves, how to think about our own value, how to dream about our futures."
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 prioritizes people over profits. "This is the difference between profit and true wealth," he says.
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 Bruce Friedrich shows the plant- and cell-based products that could soon transform the global meat industry -- and your dinner plate.
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
"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 into reality.
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. "While love is an instinct and an emotion, the ability to love better is a skill we can all build and improve on over time," she says.
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 to let you silently talk to and get information from a computer system, like a voice inside your head. Learn more about how the device works and the far-reaching implications of this new kind of human-computer interaction.
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 inhaling when you vape (hint: it's definitely not water vapor) and explores the disturbing marketing tactics being used to target kids. "Our health, the health of our children and our future generations is far too valuable to let it go up in smoke -- or even in aerosol," she says.
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 information about our health.
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 of data, DigiDoug renders the real Doug's emotions (and even how his blood flows and eyelashes move) in striking detail. Learn more about how this exciting tech was built -- and its applications in movies, virtual assistants and beyond.
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 don't, for both your brain and body. Learn more about sleep's impact on your learning, memory, immune system and even your genetic code -- as well as some helpful tips for getting some shut-eye.
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 affect executive function -- and how you can use it to break bad habits and achieve your goals.
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 unexpected problems -- and shares why he believes we need to make it easier for people to have babies. "For those who can and choose to, may you pass on this beautiful thing called life with kindness, generosity, decency and love," he says.
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, even if you don't yet have power. "There's a leader inside every single one of us," she says, "and our most important work in life is to release that leader."
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 path to belonging.
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 connected to the internet and shows how, with a little collaboration, we can get there. Unveiled in this talk: Poupyrev announces that his newest device, Jacquard, is now publicly available for all designers to use.
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 West, U2 and more -- and previews her design for the upcoming World Expo 2020 in Dubai.
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 and Cellular Biology Laboratory, she's creating plants that can store more carbon, deeper underground, for hundreds of years. Learn more about how these supercharged plants could help slow climate change. (This ambitious plan is a part of the Audacious Project, TED's initiative to inspire and fund global change.)
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 rhino," the preventable danger that we choose to ignore. She shows why predictable crises catch us by surprise -- and lays out some signs that there may be a charging rhino in your life right now.
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 new ideas, propel action and melt fear.
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 one key shift in how we help others. "Let's stop thinking about giving as just this moral obligation and start thinking of it as a source of pleasure," Dunn says.
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 behaviors that keep people in the revolving door of criminal justice -- and some ways to make the system more effective and safer for everyone.
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 offers helpful tactics for navigating the multigenerational workplace.
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 specific DNA sequences, then base editors are pencils, capable of directly rewriting one DNA letter into another. Learn more about how these molecular machines work -- and their potential to treat or even cure genetic diseases.
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 understand pollution street by street, hour by hour -- and empower you to take action to improve your health.
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. Lee shows how she uses hip-hop to teach science, leading the crowd in an updated version of Naughty by Nature's hit "O.P.P."
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 Chris Anderson about the iconic, first-ever image of a black hole -- and the epic, worldwide effort involved in capturing it.
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 encourage healthy, respectful conversations. "Are we actually delivering something that people value every single day?" Dorsey asks.
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 same players and tactics to the 2016 US presidential election -- Cadwalladr calls out the "gods of Silicon Valley" for being on the wrong side of history and asks: Are free and fair elections a thing of the past?
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 and contract like the real thing and reach superhuman speeds -- and learn how they could power prosthetics that are stronger and more efficient than human limbs.
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 the way. "When you empower a girl, you transform a community," Ntaiya says.
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 ingredients for building a movement from the ground up.
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 to test how high school students respond to and get used to risk, and how it changes their still-developing brains. What she discovered about risk and decision-making could change how we think about why teens do what they do.
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 navigation device for the blind and visually impaired, and learn more about the entirely new "haptic language" he's creating to power it.
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 us to shift how we approach grief. "A grieving person is going to laugh again and smile again," she says. "They're going to move forward. But that doesn't mean that they've moved on."
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 what happened when a group that would have never otherwise met -- 25 liberals from California and 25 conservatives from Alabama -- gathered to talk about contentious issues. "Real connection across difference: this is a salve that our democracy sorely needs," Pearlman says.
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 occur and alert nearby loved ones in time to help.
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 Atar, the first-ever AI-powered virtual advocate that guides displaced people through resettlement, helping restore their rights and dignity. "Getting access to the right resources and information can be the difference between life and death," Idris says.
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 elephant marching through it -- and shows what happens when people stop to marvel and experience a moment together.
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 we help kids in poverty simply by giving families more money? "The brain is not destiny," Noble says. "And if a child's brain can be changed, then anything is possible."
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 of space exploration. A fascinating look at how stories become reality, featuring a goose machine sent to the Moon.
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 grow new heart cells -- an exciting step towards realizing the awesome promise of stem cells as medicine.