You don't have to leave your neighborhood to live in a better one | Majora Carter

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.

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)

"Georgia is not heard or seen in the world, and many don't even know the location of the country," says TED Fellow and photographer Daro Sulakauri. Through her striking photographs of life in the shadows of Russian occupation, she uses her camera to create a living archive of her home country and defend against the erasure of its borders, culture and history.