The clock is ticking on social media giant TikTok, which faces a nationwide ban in the United States unless its parent company, ByteDance, sells it by January 19. Social media theorist Clay Shirky unpacks why the US is trying to ban TikTok, what it means for the app's users and creators and the implications for national security, freedom of speech, US-China relations and more. (This interview, hosted by TED's Whitney Pennington Rodgers, was recorded on January 8, 2025.)

AI companions could either be the cure to our loneliness epidemic … or humanity's final downfall, says Eugenia Kuyda, creator of Replika — an app that allows you to create AI friends. She explores the potential of this technology to either exacerbate isolation or encourage connection, advocating for an AI whose success is driven not by clicks and screen time but by human happiness and flourishing.

2025 ushers in one of the most dangerous periods in world history — on par with the 1930s and early Cold War, says Ian Bremmer, president and founder of Eurasia Group and GZERO Media. Highlighting the top geopolitical risks for the year ahead, Bremmer explores the impact of Donald Trump’s return to power in the US, the breakdown of the US-China relationship, the consequences of a rogue Russia, the future of unchecked AI development and more, plus some bright spots amid these unprecedented challenges. (This interview, hosted by TED’s Helen Walters, was recorded on January 6, 2025.)

Software engineer Adam Munder is on a mission to break down communication barriers between the Deaf and hearing worlds. In a live demo, he introduces OmniBridge — an AI platform that translates American Sign Language into English text in real time — and demonstrates how this tech could ensure every conversation can be fully understood, regardless of the participants' hearing abilities. Munder is joined onstage by ASL interpreter Christan Hansen and TED’s Hasiba Haq. (Made in partnership with Intel)

Feeding 10 billion people without wrecking the planet means rethinking protein, from plant-based and fermented foods to lab-grown meat that tastes like the real thing. Presenting an exciting menu of sustainable options, food futurist Andy Jarvis highlights innovations, investments and policies that could help drastically lower our carbon footprint and provide everyone with the nourishment they need — without telling anyone what to eat.

Where do you draw the line between work and life? Writer Simone Stolzoff explores the problem with defining yourself by your job — and shows what it takes to reclaim your time and sense of meaning beyond the office.

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 eradicating ancient diseases, establishing massive new ocean sanctuaries and transforming children's rights. (This conversation was recorded on December 2, 2024.)

The end of the year is often a time to reflect and spend time with family — activities that may seem joyful or anxiety-inducing, depending on your circumstances. Psychologist Guy Winch offers actionable advice on how to manage your emotions with confidence during the holidays, from setting boundaries to healing heartache — above all reminding you that emotional health is possible, as long as you're informed and willing to do the work. (This live conversation was hosted by TED's Whitney Pennington Rodgers. Visit ted.com/membership to support TED today and join more exclusive events like this one.)

Is embracing your inner teenager the key to thriving in adulthood? Neuroscientist Adriana Galván shares three powerful lessons from decades of research into adolescent brain development, exploring what teens can teach us about embracing uncertainty, challenging the status quo and taking strategic risks — all tools for a bold, brave life.

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 and entrepreneur Joshua Amponsem. He advocates for a shift in climate funding that fosters local talent and leadership, envisioning a future where African youth are key innovators in the climate movement.