A single individual is enough for hope to exist, and that individual can be you, says His Holiness Pope Francis in this searing TED Talk delivered directly from Vatican City. In a hopeful message to people of all faiths, to those who have power as well as those who don't, the spiritual leader provides illuminating commentary on the world as we c...
Golan Levin, an artist and engineer, uses modern tools -- robotics, new software, cognitive research -- to make artworks that surprise and delight. Watch as sounds become shapes, bodies create paintings, and a curious eye looks back at the curious viewer.
What if you could eat chicken nuggets without harming a chicken? It's possible through "cellular agriculture," says Isha Datar. In a talk about cutting-edge science, she explains how this new means of food production makes it possible to eat meat without the negative consequences of industrial farming -- and how it could fundamentally change our...
What if you could help decide how the government spends public funds in your community? That's the idea behind participatory budgeting, a process that brings local residents and governments together to develop concrete solutions to real problems close to home. In this inspiring call to action, community leader Shari Davis shows how participatory...
Who gets to be an entrepreneur? Saamra Mekuria-Grillo says the image we most commonly see — a guy in a hoodie — is a limiting representation of entrepreneurial success. She highlights the importance of young Black people seeing entrepreneurship as a possibility for themselves and explains the key to making the field more inclusive.
As the sun rises over Delphi in 500 BCE, Aristonike hurries to the temple of Apollo where a single oracle known as the Pythia communicates Apollo's will. Reserved only for women, this is the most important job in the city— and one that Aristonike will soon have to take on if city council officials decide she meets their standards. Mark Robinson ...
MIT grad student Joy Buolamwini was working with facial analysis software when she noticed a problem: the software didn't detect her face -- because the people who coded the algorithm hadn't taught it to identify a broad range of skin tones and facial structures. Now she's on a mission to fight bias in machine learning, a phenomenon she calls th...
In this bracing talk, coral reef ecologist Jeremy Jackson lays out the shocking state of the ocean today: overfished, overheated, polluted, with indicators that things will get much worse. Astonishing photos and stats make the case.
It's not the passage of time that makes it so hard to get older. It's ageism, a prejudice that pits us against our future selves -- and each other. Ashton Applewhite urges us to dismantle the dread and mobilize against the last socially acceptable prejudice. "Aging is not a problem to be fixed or a disease to be cured," she says. "It is a natura...
In a dark cave, bats can't see much. But even with their eyes shut, they can navigate rocky topography at incredible speeds. This is because bats aren't just guided by their eyes, but rather, by their ears. It may seem impossible to see with sound, but bats, naval officers, and doctors do it all the time. How is that possible? Jacques S. Abramow...
Is torture ever justified? Would you steal a drug that your child needs to survive? Is it sometimes wrong to tell the truth? How much is one human life worth? In the "Justice" program that bears his name, Harvard professor Michael Sandel probes these questions -- and asks what you think, and why.
Journalist Anas Aremeyaw Anas has broken dozens of stories of corruption and organized crime all over Ghana -- without ever revealing his identity. In this talk (in which his face remains hidden) Anas shows grisly footage from some of his investigations and demonstrates the importance of facing injustice.
One day in the fall, you called upon your friend, Sherlock Holmes, and found him in conversation with Jabez Wilson. Wilson had been working for the mysterious League of Red-Headed Men. Today, he arrived at work to find the group had disappeared, and now turns to Holmes to make sense of the events. Follow the detective and see if you can solve th...
Here's a question we all have to answer sooner or later: What do you want to happen to your body when you die? Funeral director Caitlin Doughty explores new ways to prepare us for inevitable mortality. In this thoughtful talk, learn more about ideas for burial (like "recomposting" and "conservation burial") that return our bodies back to the ear...
From Mozart's operatic arias of love to João Gilberto's bossa nova tunes of play, music is full of ideas worth spreading. In a fun and symphonic talk, acclaimed orchestra conductor Sergio Feferovich showcases the ways in which music can introduce ideas that reach far beyond the notes composed.
Corruption is a constant threat in Kenya, says social entrepreneur Wanjira Mathai -- and to stop it there (or anywhere else), we need to intervene early. Following the legacy of her mother, political activist and Nobel Prize recipient Wangari Maathai, Mathai shares three strategies to uproot a culture of corruption by teaching children and young...
Sometimes it's hard to know what statistics are worthy of trust. But we shouldn't count out stats altogether ... instead, we should learn to look behind them. In this delightful, hilarious talk, data journalist Mona Chalabi shares handy tips to help question, interpret and truly understand what the numbers are saying.
Bjørn Otto Sverdrup leads the Oil and Gas Climate Initiative (OGCI), which gathers the CEOs of twelve of the world's largest oil and gas companies around an ambitious goal: to get one of the sectors contributing most to climate change to drastically lower their own carbon emissions. He describes a possible path for the industry to pivot to net-z...
Organized crime operates across national borders -- to keep up, investigative journalists need to do the same. TED Fellow Bektour Iskender gives the inside scoop on his efforts to unveil secret, insidious operations in his home country of Kyrgyzstan, and how he worked with a team of journalists to uncover corruption and spark a national movement...
Here's a paradox: as companies try to streamline their businesses by using artificial intelligence to make critical decisions, they may inadvertently make themselves less efficient. Business technologist Sylvain Duranton advocates for a "Human plus AI" approach -- using AI systems alongside humans, not instead of them -- and shares the specific ...