The Download: a longevity influencer’s new religion, and humanoid robots’ shortcomings
Published on: 2025-07-24 16:10:00
Bryan Johnson is on a mission to not die. The 47-year-old multimillionaire has already applied his slogan “Don’t Die” to events, merchandise, and a Netflix documentary. Now he’s founding a Don’t Die religion.
Johnson, who famously spends millions of dollars on scans, tests, supplements, and a lifestyle routine designed to slow or reverse the aging process, has enjoyed extensive media coverage, and a huge social media following. For many people, he has become the face of the longevity field.
I sat down with Johnson at an event for people interested in longevity in Berkeley, California, in late April to hear more about the key concern underpinning his Don’t Die mission: ensuring AI is aligned with preserving human existence. Read the full story.
—Jessica Hamzelou
Why the humanoid workforce is running late
Last week I watched Daniela Rus, one of the world’s top experts on AI-powered robots, address a packed room at a Boston robotics expo. Rus spent a portion of her talk busting t
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