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  • A Billion-Dollar Bet on Carbon Removal

    Nan Ransohoff is the head of climate at Stripe. The company is known mainly for facilitating online payments, but it’s become a key driver of the nascent carbon-removal industry. On today’s show, Nan explains how…


  • Giving Old Batteries New Life

    Megan O’Connor is the co-founder and CEO of Nth Cycle. Megan’s problem is this: How do you create a new system that can both refine the raw metals we need for new batteries and recycle…


  • Engineering the Future of Fusion

    Getting energy from nuclear fusion has been a dream for decades; it would be cheap, abundant, and safer than today’s nuclear fission reactors. Billions of dollars have flowed into fusion startups in recent years, but…


  • Can Robots Fix Recycling?

    Recycling plants take in a huge amount of random (and occasionally hazardous) stuff, which they then have to turn into reliable outputs that their customers will buy. That’s why Rebecca Hu Thrams calls recycling “the…


  • Warlords, Espionage, and Disinformation | Introducing Hot Money: Agent of Chaos

    In 2020, the Financial Times exposed a 2 billion euro fraud at Wirecard, a high-flying German fintech. Many thought that was the end of the story. But for reporter Sam Jones, it was just the…


  • Inside the Mind of an AI Model

    AI  might be the most consequential advancement in the world right now. But – astonishingly – no one fully understands what’s going on inside AI models. Josh Batson is a research scientist at Anthropic, the…


  • Teaching Robots How to Do Everything

    AI is better than humans at a lot of things, but physical tasks – even seemingly simple ones like folding a shirt – routinely stump AI-powered robots. Chelsea Finn is a professor at Stanford and…


  • Making a Universal Flu Vaccine

    Jacob Glanville is the founder and CEO of Centivax. Jacob’s problem is this: Can you create a vaccine that protects people against almost all strains of flu – even strains that haven’t evolved yet? Get…


  • Teaching Computers to Smell

    Alex Wiltschko got obsessed with perfume when he was 12 years old. He grew up to be an AI researcher at Google. Then he started Osmo, a company that fused his job at Google with…


  • China’s Race to Dominate: Listen to Global Tech Wars

    For decades, China’s economic rise has been symbolized by its unstoppable force of low-cost manufacturing. Now, it’s the leading country in cutting-edge industries like artificial intelligence, electric vehicles, surveillance technology, and more. In Global Tech…