What stops you from speaking up when it matters most? Healthcare leader Sarah Crawford-Bohl offers a practical, compassionate framework to have difficult conversations with clarity and heart — and shows how it can lead to stronger teams and real impact.

AI in warfare is no longer hypothetical; it's inevitable, says Palmer Luckey, an inventor and founder of the defense technology company Anduril Industries. He takes us inside the high-tech arms race to build AI-powered weapons, "killer robots" and autonomous fighter jets at scale — and makes the counterintuitive case for why this may be the surest path to deterrence and lasting peace. (Followed by Q&A with technologist Bilawal Sidhu)

"If you can't respect the basic fundamental underlying principles with which we order society — which is 'Do not steal' — then what are you left with?" asks investigative journalist Carole Cadwalladr. Following her TED2025 talk, Cadwalladr is in conversation with Chris Anderson, head of TED, to warn about surveillance fascism. What happens when big Silicon Valley companies take over communication platforms and weaponize intellectual property against you? She suggests that when you feel powerless, it's often actually because you are powerful — and explores why it's so important to fight information chaos by supporting independent media and journalists.

Can art pave the way for a politically divided nation to move forward? Artist, cultural strategist and TED Fellow Marc Bamuthi Joseph reflects on the role of art, forgiveness and remembrance in the pursuit of public healing — especially at a time when trust is contested and community forums fractured. Wendy Whelan, associate artistic director of the New York City Ballet, joins him on stage for a rendition of “The Carnival of the Animals,” exploring how the cuckoo bird exemplifies the cycles of inaction that lead to injustice. It's more than a performance — it's a reckoning.

"We are not drowning. We are fighting," says storyteller Fenton Lutunatabua, echoing the mantra of the climate activists he works with across the Pacific. He shares stories of the people and communities at the front lines of the climate crisis, proving they're not waiting to be saved — they're demanding action and putting up a fierce fight for the future.

Hope isn’t just a feeling, but a skill you can practice, explains climate activist Xiye Bastida. Taking cues from the resilience of nature, she shows why trusting Indigenous leaders who’ve protected the planet for generations can help turn despair about the climate into the momentum needed to ignite meaningful change. A powerful reminder that the fire in your heart is your greatest strength for creating a better future.

An accomplished cellist, TED Fellow Joshua Roman has practiced his instrument daily since he was a child — until a severe case of long COVID almost robbed him of his ability to play. In an inspiring talk, he plays a piece by Johann Sebastian Bach, shares how he found his way back to music and then performs a staggering new solo composition, titled "Immunity."

Picture this: you’re wearing a normal-looking pair of glasses, but they give you the ability to quickly summarize a book, translate between languages or remember where you left your keys. In a live demo of unreleased technology, computer scientist Shahram Izadi unveils Google’s new Android XR platform, which aims to give users the power of AI via smart glasses and headsets. He’s joined onstage by two colleagues, giving a glimpse of the future of “extended reality” (XR) devices — smart, seamless and right before your eyes.

What if the race to save the planet is harming the people who protect it? Indigenous advocate Galina Angarova exposes the hidden cost of the green energy transition, where the demand for minerals like nickel and lithium threatens to devastate Indigenous lands and livelihoods. She calls for a radical shift in mindset — one that centers Indigenous leadership, consent and reciprocity as the foundation of a truly just and sustainable future.

Why do we assume single people aren’t happy? Behavioral economist (and lifelong bachelor) Peter McGraw advocates for a world in which single life is just as accepted as marriage, debunking the myth that getting hitched is the only path to fulfillment. From spinsters to cat ladies, he outlines the power in chosen family — and invites you to reconsider what it means to live a remarkable life.