Inner Cosmos with David Eagleman

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Latest Episodes:

Ep106 "What happens when brains watch movies?" (with Jeffrey Zacks) May 26, 2025

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Why do movies work so well? What does film reveal about the way the brain processes reality? What does any of this have to do with omniscience, simulation, jumping around in time, or why dogs don’t do story? Join Eagleman with guest Jeffrey Zacks, cognitive scientist at Wash U, as we dive into the peculiar magic that happens when the lights go down, the screen glows to life, and we find ourselves pulled into the world of a film.

Ep105 "What if AI is not actually intelligent?" (with Alison Gopnik) May 19, 2025

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Is AI an intelligent agent, or is there a different way we should be thinking about it? Is it more like a piece of cultural technology? What in the world is a piece of cultural technology -- and how would re-thinking this change our next steps? What does any of this have to do with the myth of the Golem, printing presses, Socrates, Martin Luther, or the story of stone soup? Join Eagleman this week with cognitive scientist Alison Gopnik for a new take on a new tech.

Ep104 "What is your internal world really like?" (with Russell Hurlburt) May 12, 2025

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If you had to give a detailed description of what flits through your mind, how good would you be at it? Might you be surprised at how many of your thoughts don't involve language? Are your thoughts changed by paying attention to them? What does this have to do with getting surprised by a random beep and immediately writing down what you’re thinking? Join Eagleman this week in conversation with Russell Hurlburt, a clinical psychologist who developed a new method to probe inner life.

Ep103 "Could you ever know what it’s like to be someone else?" (Part 2) May 05, 2025

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What would it take to get inside someone else's head, and could new brain technologies ever help us get there? Will there be dream celebrities, in which uploads go viral? What does consciousness feel like from the inside, and why do movies always get this wrong? Why don't you see your own blinks? What would it be like if exactly 1/2 of your brain was numbed to sleep? And what would it be like to become a horse?

Ep102 "Could you ever know what it’s like to be someone else?" (Part 1) Apr 28, 2025

Show notes

What does it mean to stand in another’s shoes—and when are the gaps between us too wide to cross? This week, Eagleman explores bats, kicked robots, Helen Keller, empathy, storytelling, and the phrase “I know exactly how you feel.” We'll weave through neuroscience, philosophy, literature, and technology to ask: Can we ever truly understand another’s inner world?

Ep101 "Why do people walk away from bad events with different outcomes?" Apr 21, 2025

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What enables some people to keep going when everything falls apart? We all know someone who’s been through hell and comes out standing. This episode is about resilience. Join Eagleman with guest Dr. Jonathan Downar to discover what happens in the brain when we face adversity. Is resilience something you’re born with, or is it something your brain can develop? What does any of this have to do with The Diving Bell and the Butterfly, using magnetic fields to zap the brain, the less famous partner to the reward system, or what seemingly unrelated disorders in psychiatry all have in common?

Ep100 "Why do brains love slow motion video?" Apr 14, 2025

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What does The Matrix tell us about the brain and time perception? And what does that have to do with champion bicyclists, hidden data, elementary particles, secret murderers, or time machines? Today’s episode is about slow motion: what’s going on in the brain, and why we are so mesmerized by it. Whether watching a sword battle, basketball dunk, or sprinters, we're pulled to slow motion like moths to flame... but have you ever wondered from a neuroscience perspective what that’s all about? Me too, and hence today’s 100th weekiversary episode.

Ep99 "Why do brains sometimes make things up?" Apr 07, 2025

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Your brain occasionally cooks up falsehoods that you believe entirely, but why does this confabulation happen, and how frequently? What does this tell us about memory, truth-telling, and your life as a story that drifts? And what does this have to do with a paralyzed Supreme Court judge, a blind person who insists she can see, whether Nelson Mandela did or did not die in the 1980s, or whether Curious George had a tail?

EP98 "What's the future of AI relationships?" (with Bethanie Maples) Mar 31, 2025

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How many people are having relationships with artificial neural networks? Should we think of AI lovers as traps, mirrors, or sandboxes? Is there a clear line between relationship bots and therapist bots? And what does this have to do with Eliza Doolittle, a doll cabinet in your head, loneliness epidemics, or suicide mitigation? Join Eagleman with guest researcher Bethanie Maples to discover where we are and where we're going.

Ep 97 "Can we rewrite the human code?" (with Trevor Martin) Mar 24, 2025

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You're defined in part by the genome you arrive with -- so what does it mean when you can edit it? What does this have to do with viruses, copy-pasting, and whether we will modify the story of our own species? Join Eagleman with guest Trevor Martin, CEO of Mammoth Biosciences, for this week's episode about the remarkable situation we find ourselves in, now that we know how to read and write our biological inheritance.

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