In his 2000 bestseller "The Tipping Point," Malcolm Gladwell told the story of why crime fell in New York City in the 1990s. Now, 25 years later, he's back with a confession and a mea culpa: "I was wrong," he says. He shares how his...

Seventy-two percent of the world's population lives under some sort of autocratic rule, says freedom fighter Leopoldo Lopez. In a rousing call to defend democracy worldwide, he shares the story of his imprisonment and exile for leading...

How can everyday people help foster and protect democracy? Detailing her work fighting for people power as an activist in Madagascar, Ketakandriana Rafitoson discusses how citizen assemblies — meetings where ordinary citizens get...

Lily Yeh calls herself a barefoot artist: she travels the world with a suitcase full of art supplies, working with whoever wants to join her. In an inspiring talk, she shares the fruits of her collaborative art projects that bring color,...

What will the world look like in 2030? International business consultant Nikolaus S. Lang predicts the evolution of a multipolar world, with multiple emerging coalitions of countries acting in new ways to achieve their economic,...

With all that spam clogging your inbox, a more personalized experience with the brands you interact with would be a refreshing change of pace. Sharing insights from his research into what brands can do to improve the experience of the...

What does a warming planet mean for the foods you love? Hosting a dinner party that features a menu of foods that could disappear within our lifetimes, culinary entrepreneur Sam Kass invites us to chew on the reality of climate change by...

Data isn't just about numbers or trends — it's about capturing the stories that shape our lives, says information designer Giorgia Lupi. Following a long COVID diagnosis, she tracked her symptoms meticulously over four years, the data...

Fashion is a huge part of the world's waste problem, but it doesn't have to be. Coachtopia founder Joon Silverstein shows how her company creates new designs from the waste products of another, a circular process that cuts the need for...

For a long time, the conveyor belt of ideas moved from the West to the East, says business strategy expert Neeraj Aggarwal. But now, Asia’s rising cultural and intellectual influence is redefining this established order. He explores how...

In a universe not unlike ours, a tech-environmentalist group claims to have created an AI that is the direct “voice of the earth,” a computer connected via electrodes to the mycelium network under an ancient forest named S.A.N. (Sentient...

Is it possible to meet the world's seemingly infinite demand for data storage while also caring for the natural environment? Biomedical researcher Keolu Fox and professional surfer and scientist Cliff Kapono believe that Indigenous...

When it comes to tackling the climate crisis, the majority of the workforce in Africa believes their role is in the labor-intensive, low-income work — not in the strategic, analytical or leadership-based spaces, says climate visionary...

Dana R. Fisher calls herself an "apocalyptic optimist" based on her research as a sociologist of large social movements. Her studies suggest that ever-increasing climate disasters will get people out in the streets demanding the action...

Intuition helps us see the big picture, says filmmaker and sustainability leader Hrund Gunnsteinsdóttir. Reflecting on her work at the UN, she outlines three ways innsæi (the Icelandic word for "intuition") can help humanity face our...

Curiosity is about seeking what unites us rather than clinging to what divides us, says author and curiosity expert Scott Shigeoka. Drawing on his research into fostering connection and healing division, he shares what he learned...

It's time for our periodic update of good news from Angus Hervey, founder of Fix the News, an independent publication that reports stories of global progress. In a quick talk, he shares three major updates of recent human progress on...

TED Fellow and renewable energy expert Norah Magero envisions an Africa that pioneers its own technological future, shifting the narrative from dependence and consumption to self-reliance and innovation. She shares how she developed...

TED Fellow and economic policy researcher Huiyi Lin is cocreator of "The Poverty Line," an art project examining poverty through the lens of food. By photographing the daily food choices of people living at the poverty line in 38...

What IS Angular Momentum?

Parallel Universes - Many Worlds

Open Letter to the President - Physics Education

We’ve changed - and standardized - the way diseases get named because the old way was often stigmatizing and confusing.

How to Build a Better City