"Down down, baby, down down the roller coaster..." Hip-hop owes a lot of the queens of double dutch. Ethnomusicologist Kyra Gaunt takes us on a tour of the fascinating history of the jump rope.
How the simple button changed the world, according to fashion designer Isaac Mizrahi.
Stairs don't just get you from point A to point B. Architect David Rockwell explains how they shape your movement -- and your feelings.
The hyperlink is the LEGO block of the internet. Here's the bizarre history of how it came to be, as told by user experience master Margaret Gould Stewart.
How can we make AI that people actually want to interact with? Raphael Arar suggests we start by making art. He shares interactive projects that help AI explore complex ideas like nostalgia, intuition and conversation -- all working towards the goal of making our future technology just as much human as it is artificial.
Four decades ago, Judith Heumann helped to lead a groundbreaking protest called the Section 504 sit-in -- in which disabled-rights activists occupied a federal building for almost a month, demanding greater accessibility for all. In this personal, inspiring talk, Heumann tells the stories behind the protest -- and reminds us that, 40 years on, there's still work left to do.
As a humanist, Leo Igwe doesn't believe in divine intervention -- but he does believe in the power of human beings to alleviate suffering, cure disease, preserve the planet and turn situations of poverty into prosperity. In this bold talk, Igwe shares how humanism can free Africans from damaging superstitions and give them the power to rebuild the continent.
Ndidi Nwuneli has advice for Africans who believe in God -- and Africans who don't. To the religious, she advises against using God to outsource responsibility for what happens in their lives. To the non-religious, she asks that they keep an open mind and work with faith-based organizations, especially on issues like health care and education. "There's so much potential that can be realized when we walk across the divide of faith and, hand in hand, try to solve many of our problems," Nwuneli says.
At 14, Christian Picciolini went from naïve teenager to white supremacist -- and soon, the leader of the first neo-Nazi skinhead gang in the United States. How was he radicalized, and how did he ultimately get out of the movement? In this courageous talk, Picciolini shares the surprising and counterintuitive solution to hate in all forms.
In the US, your taxes fund academic research at public universities. Why then do you need to pay expensive, for-profit journals for the results of that research? Erica Stone advocates for a new, open-access relationship between the public and scholars, making the case that academics should publish in more accessible media. "A functioning democracy requires that the public be well-educated and well-informed," Stone says. "Instead of research happening behind paywalls and bureaucracy, wouldn't it be better if it was unfolding right in front of us?"
Each year, the world loses enough food to feed half a billion people to fungi, the most destructive pathogens of plants. Mycologist and TED Fellow Mennat El Ghalid explains how a breakthrough in our understanding of the molecular signals fungi use to attack plants could disrupt this interaction -- and save our crops.
As quantum computing matures, it's going to bring unimaginable increases in computational power along with it -- and the systems we use to protect our data (and our democratic processes) will become even more vulnerable. But there's still time to plan against the impending data apocalypse, says encryption expert Vikram Sharma. Learn more about how he's fighting quantum with quantum: designing security devices and programs that use the power of quantum physics to defend against the most sophisticated attacks.
What if we incentivized doctors to keep us healthy instead of paying them only when we're already sick? Matthias Müllenbeck explains how this radical shift from a sick care system to a true health care system could save us from unnecessary costs and risky procedures -- and keep us healthier for longer.
Amishi Jha studies how we pay attention: the process by which our brain decides what's important out of the constant stream of information it receives. Both external distractions (like stress) and internal ones (like mind-wandering) diminish our attention's power, Jha says -- but some simple techniques can boost it. "Pay attention to your attention," Jha says.
From Beyoncé to Drake and beyond, the world is rocking to the rhythm of Afrobeat. Feel the music as Kenyan afro-pop superstars Sauti Sol take the TED stage to perform three songs: "Live and Die in Afrika," "Sura Yako" and "Kuliko Jana."
The United States locks up more people than any other country in the world, says documentarian Eve Abrams, and somewhere between one and four percent of those in prison are likely innocent. That's 87,000 brothers, sisters, mothers and fathers -- predominantly African American -- unnecessarily separated from their families, their lives and dreams put on hold. Using audio from her interviews with incarcerated people and their families, Abrams shares touching stories of those impacted by mass incarceration and calls on us all to take a stand and ensure that the justice system works for everyone.
"Where do great ideas come from?" Starting with this question in mind, Vittorio Loreto takes us on a journey to explore a possible mathematical scheme that explains the birth of the new. Learn more about the "adjacent possible" -- the crossroads of what's actual and what's possible -- and how studying the math that drives it could explain how we create new ideas.
Design legend Michael Bierut tells the story of the accidental success of one of the most famous maps in the world -- the London Tube Map.
In 2014, as a newly trained physician, Soka Moses took on one of the toughest jobs in the world: treating highly contagious patients at the height of Liberia's Ebola outbreak. In this intense, emotional talk, he details what he saw on the frontlines of the crisis -- and reveals the challenges and stigma that thousands of survivors still face.
We use rituals to mark the early stages of our lives, like birthdays and graduations -- but what about our later years? In this meditative talk about looking both backward and forward, Bob Stein proposes a new tradition of giving away your things (and sharing the stories behind them) as you get older, to reflect on your life so far and open the door to whatever comes next.
Liz Ogbu is an architect who works on spatial justice: the idea that justice has a geography and that the equitable distribution of resources and services is a human right. In San Francisco, she's questioning the all too familiar story of gentrification: that poor people will be pushed out by development and progress. "Why is it that we treat culture erasure and economic displacement as inevitable?" she asks, calling on developers, architects and policymakers to instead "make a commitment to build people's capacity to stay in their homes, to stay in their communities, to stay where they feel whole."
Director and playwright Adong Judith creates provocative art that sparks dialogue on issues from LGBTQ rights to war crimes. In this quick but powerful talk, the TED Fellow details her work -- including the play "Silent Voices," which brought victims of the Northern Ugandan war against Joseph Kony's rebel group together with political, religious and cultural leaders for transformative talks. "Listening to one another will not magically solve all problems," Judith says. "But it will give a chance to create avenues to start to work together to solve many of humanity's problems."
Something strange and deadly is happening inside the brains of top athletes -- a degenerative condition, possibly linked to concussions, that causes dementia, psychosis and far-too-early death. It's called chronic traumatic encephalopathy, or CTE, and it's the medical mystery that Chris Nowinski wants to solve by analyzing brains after death. It's also why, when Nowinski meets a pro athlete, his first question is: "Can I have your brain?" Hear more from this ground-breaking effort to protect athletes' brains -- and yours, too.
We're all against hate, right? We agree it's a problem -- their problem, not our problem, that is. But as Sally Kohn discovered, we all hate -- some of us in subtle ways, others in obvious ones. As she confronts a hard story from her own life, she shares ideas on how we can recognize, challenge and heal from hatred in our institutions and in ourselves.
Singer-songwriter Rei brings her mix of indie rock and blues to the TED stage in a performance of two songs, "my mama" and "BLACK BANANA."