Terrorists and extremists aren't all naturally violent sociopaths -- they're deliberately recruited and radicalized in a process that doesn't fit into a neat pattern. Erin Marie Saltman discusses the push and pull factors that cause people to join extremist groups and explains innovative ways of preventing and countering radicalization.
Daan Roosegaarde uses technology and creative thinking to produce imaginative, earth-friendly designs. He presents his latest projects -- from a bike path in Eindhoven, where he reinterpreted "The Starry Night" to get people thinking about green energy, to Beijing, where he developed a smog vacuum cleaner to purify the air in local parks, to a dance floor that generates electricity to power a DJ booth. Check out Roosegaarde's vision for a future where creativity is our true capital.
Digital archaeologist Chance Coughenour is using pictures -- your pictures -- to reclaim antiquities that have been lost to conflict and disaster. After crowdsourcing photographs of destroyed monuments, museums and artifacts, Coughenour uses advanced technology called photogrammetry to create 3D reconstructions, preserving the memory of our global, shared, human heritage. Find out more about how you can help celebrate and safeguard history that's being lost.
What the astronauts felt when they saw Earth from space changed them forever. Author and artist Benjamin Grant aims to provoke this same feeling of overwhelming scale and beauty in each of us through a series of stunning satellite images that show the effects human beings are having on the planet. "If we can adopt a more expansive perspective, embrace the truth of what is going on and contemplate the long-term health of our planet, we will create a better, safer and smarter future for our one and only home," Grant says.
Meet Todai Robot, an AI project that performed in the top 20 percent of students on the entrance exam for the University of Tokyo -- without actually understanding a thing. While it's not matriculating anytime soon, Todai Robot's success raises alarming questions for the future of human education. How can we help kids excel at the things that humans will always do better than AI?
Movement artists Jon Boogz and Lil Buck debut "Honor thy mother," a delicate, powerful performance of spoken word, violin and dance that draws on the tormented relationship between nature and humanity.
Your cells are coated with sugars that store information and speak a secret language. What are they trying to tell us? Your blood type, for one -- and, potentially, that you have cancer. Chemical biologist Carolyn Bertozzi researches how sugars on cancerous cells interact with (and sometimes trick) your immune system. Learn more about how your body detects cancer and how the latest cancer-fighting medicines could help your immune system beat the disease.
On August 21, 2017, the moon's shadow raced from Oregon to South Carolina in what some consider to be the most awe-inspiring spectacle in all of nature: a total solar eclipse. Umbraphile David Baron chases these rare events across the globe, and in this ode to the bliss of seeing the solar corona, he explains why you owe it to yourself to witness one, too.
Could it be wrong to help children in need by starting an orphanage? In this eye-opening talk about the bad consequences of good intentions, Tara Winkler speaks out against the spread of orphanages in developing countries, caused in part by foreign donors, and details the harm done to children when they are separated from their families and left to grow up in institutions.
Another economic reality is possible -- one that values community, sustainability and resiliency instead of profit by any means necessary. Niki Okuk shares her case for cooperative economics and a vision for how working-class people can organize and own the businesses they work for, making decisions for themselves and enjoying the fruits of their labor.
With his signature charm and searching insight, David Whyte meditates on the frontiers of the past, present and future, sharing two poems inspired by his niece's hike along El Camino de Santiago de Compostela in Spain.
Algorithms decide who gets a loan, who gets a job interview, who gets insurance and much more -- but they don't automatically make things fair. Mathematician and data scientist Cathy O'Neil coined a term for algorithms that are secret, important and harmful: "weapons of math destruction." Learn more about the hidden agendas behind the formulas.
"Music is everywhere, and it is in everything," says musician, student and TED-Ed Clubs star Anika Paulson. Guitar in hand, she plays through the beats of her life in an exploration of how music connects us and makes us what we are.
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 natural, powerful, lifelong process that unites us all."
The Italian island of Sardinia has more than six times as many centenarians as the mainland and ten times as many as North America. Why? According to psychologist Susan Pinker, it's not a sunny disposition or a low-fat, gluten-free diet that keeps the islanders healthy -- it's their emphasis on close personal relationships and face-to-face interactions. Learn more about super longevity as Pinker explains what it takes to live to 100 and beyond.
How smart can our machines make us? Tom Gruber, co-creator of Siri, wants to make "humanistic AI" that augments and collaborates with us instead of competing with (or replacing) us. He shares his vision for a future where AI helps us achieve superhuman performance in perception, creativity and cognitive function -- from turbocharging our design skills to helping us remember everything we've ever read and the name of everyone we've ever met. "We are in the middle of a renaissance in AI," Gruber says. "Every time a machine gets smarter, we get smarter."
When Richard J. Berry, the mayor of Albuquerque, saw a man on a street corner holding a cardboard sign that read "Want a job," he decided to take him (and others in his situation) up on it. He and his staff started a citywide initiative to help the homeless by giving them day jobs and a place to sleep -- and the results were incredible. Find out how your city can replicate Albuquerque's model with this frank and optimistic talk.
More than half of the world's population already lives in cities, and another 2.5 billion people are projected to move to urban areas by 2050. The way we build new cities will be at the heart of so much that matters, from climate change to economic vitality to our very well-being and sense of connectedness. Peter Calthorpe is already at work planning the cities of the future and advocating for community design that's focused on human interaction. He shares seven universal principles for solving sprawl and building smarter, more sustainable cities.
It's been a weird 100 years for artists and creators, says musician and entrepreneur Jack Conte. The traditional ways we've turned art into money (like record sales) have been broken by the internet, leaving musicians, writers and artists wondering how to make a living. With Patreon, Conte has created a way for artists on the internet to get paid by their fans. Could payment platforms like this change what it means to be an artist in the digital age?
When artist Damon Davis went to join the protests in Ferguson, Missouri, after police killed Michael Brown in 2014, he found not only anger but also a sense of love for self and community. His documentary "Whose Streets?" tells the story of the protests from the perspective of the activists who showed up to challenge those who use power to spread fear and hate.
Anjan Chatterjee uses tools from evolutionary psychology and cognitive neuroscience to study one of nature's most captivating concepts: beauty. Learn more about the science behind why certain configurations of line, color and form excite us in this fascinating, deep look inside your brain.
Each year, one in seven large corporations commits fraud. Why? To find out, Alexander Wagner takes us inside the economics, ethics and psychology of doing the right thing. Join him for an introspective journey down the slippery slopes of deception as he helps us understand why people behave the way they do.
Do you sometimes have your most creative ideas while folding laundry, washing dishes or doing nothing in particular? It's because when your body goes on autopilot, your brain gets busy forming new neural connections that connect ideas and solve problems. Learn to love being bored as Manoush Zomorodi explains the connection between spacing out and creativity.
Behold the microscopic jungle in and around you: tiny organisms living on your cheeks, under your sofa and in the soil in your backyard. We have an adversarial relationship with these microbes -- we sanitize, exterminate and disinfect them -- but according to microbiologist Anne Madden, they're sources of new technologies and medicines waiting to be discovered. These microscopic alchemists aren't gross, Madden says -- they're the future.
Harvard Law professor Ronald Sullivan fights to free wrongfully convicted people from jail -- in fact, he has freed some 6,000 innocent people over the course of his career. He shares heartbreaking stories of how (and why) people end up being put in jail for something they didn't do, and the consequences in their lives and the lives of others. Watch this essential talk about the duty we all have to make the world a bit more fair every day, however we can.
In 2002, the Colombian guerrilla movement known as the FARC (Revolutionary Armed Forces of Colombia) kidnapped Ingrid Betancourt in the middle of her presidential campaign. For the next six years, Betancourt was held hostage in jungle prison camps where she was ravaged by malaria, fleas, hunger and human cruelty until her rescue by the Colombian government. In this deeply personal talk, the politician turned writer explains what it's like to live in a perpetual state of fear -- and how her faith sustained her. (In Spanish with English subtitles.)
Ten years ago, researchers thought that getting a computer to tell the difference between a cat and a dog would be almost impossible. Today, computer vision systems do it with greater than 99 percent accuracy. How? Joseph Redmon works on the YOLO (You Only Look Once) system, an open-source method of object detection that can identify objects in images and video -- from zebras to stop signs -- with lightning-quick speed. In a remarkable live demo, Redmon shows off this important step forward for applications like self-driving cars, robotics and even cancer detection.
Meet Françoise Mouly, The New Yorker's art director. For the past 24 years, she's helped decide what appears on the magazine's famous cover, from the black-on-black depiction of the Twin Towers the week after 9/11 to a recent, Russia-influenced riff on the magazine's mascot, Eustace Tilley. In this visual retrospective, Mouly considers how a simple drawing can cut through the torrent of images that we see every day and elegantly capture the feeling (and the sensibility) of a moment in time.
Loneliness doesn't always stem from being alone. For architect Grace Kim, loneliness is a function of how socially connected we feel to the people around us -- and it's often the result of the homes we live in. She shares an age-old antidote to isolation: cohousing, a way of living where people choose to share space with their neighbors, get to know them, and look after them. Rethink your home and how you live in it with this eye-opening talk.
Artist Titus Kaphar makes paintings and sculptures that wrestle with the struggles of the past while speaking to the diversity and advances of the present. In an unforgettable live workshop, Kaphar takes a brush full of white paint to a replica of a 17th-century Frans Hals painting, obscuring parts of the composition and bringing its hidden story into view. There's a narrative coded in art like this, Kaphar says. What happens when we shift our focus and confront unspoken truths?