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 the movement against Venezuela's authoritarian regime — and shares his vision for uniting across borders to champion freedom and stamp out autocracy.

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, technological and military goals. He dives into what this will mean for the global economy, offering five tips for business leaders to prepare for the coming geopolitical landscape.

Does AI pose a threat to democracy? Law professor Lawrence Lessig dissects how this emerging technology could influence democratic institutions, warning that we’ve already passed a point (before superintelligence or AGI) that deserves a lot more attention.

In this whimsical talk and performance, musician and comedian Elle Cordova ponders what happened before the Big Bang. She’s then joined by guitarist Toni Lindgren for the original song “Carl Sagan,” exploring social media, human connection and how we’re all just reaching out like stars in the night sky.

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 analysis contributed to the rise of the infamous "stop and frisk" policing policy in New York City — and shows why journalists should avoid the trap of imagining a story is ever really over. (Followed by a Q&A with TED's Monique Ruff-Bell)

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 Advocate of Nature). The film imagines what nature thinks of human impact on the planet, as a renowned reporter conducts a world-first interview with S.A.N.

What if you could take something as tiny as a grain of sand — and as common as a glass bottle — and use it to tackle the climate crisis? Waste alchemist Franziska Trautmann shares how the spark of an idea turned into a large-scale operation helping restore the eroded shores of Louisiana and beyond. (Created in collaboration with Ignite Talks)

Networking doesn’t always have to feel like a self-serving transaction, says executive coach Daniel Hallak. Highlighting the importance of focusing on giving rather than taking when it comes to making connections, he outlines a mindset shift to help you build better relationships — in a way that doesn't feel gross.

Here's a wild stat: nearly one-third of the world's food production goes to waste each year, a major contributor to the climate crisis. Farmer and UN climate champion Gonzalo Muñoz sheds light on the international negotiations aimed at turning the food system into a climate solution, rather than part of the problem — and shows the progress already underway.

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 knowledge combined with the science of genetics may offer such a solution: using the DNA of plant cells (like those found in sugar cane) as mini data warehouses. Learn more about the incredible potential of this technology — and how it could help foster ecosystem resilience in a high-tech world.