Uploaded September 2023 | Updated September 2026, 2 weeks ago
From the Radiolab podcast: Most of us would sacrifice one life to save five, but what if that one had to die by your hand?
Most of us would sacrifice one person to save five. It’s a pretty straightforward bit of moral math. But if we have to actually kill that person ourselves, the math gets fuzzy.
That’s the lesson of the classic Trolley Problem, a moral puzzle that fried our brains in an episode we did almost 20 years ago, then updated again in 2017. Historically, the questions posed by The Trolley Problem are great for thought experimentation and conversations at a certain kind of cocktail party. Now, new technologies are forcing that moral quandary out of our philosophy departments and onto our streets.
So today, we revisit the Trolley Problem and wonder how a two-ton hunk of speeding metal will make moral calculations about life and death that still baffle its creators.
Special thanks to Iyad Rahwan, Edmond Awad and Sydney Levine from the Moral Machine group at MIT. Also thanks to Fiery Cushman, Matthew DeBord, Sertac Karaman, Martine Powers, Xin Xiang, and Roborace for all of their help. Thanks to the CUNY Graduate School of Journalism students who collected the vox: Chelsea Donohue, Ivan Flores, David Gentile, Maite Hernandez, Claudia Irizarry-Aponte, Comice Johnson, Richard Loria, Nivian Malik, Avery Miles, Alexandra Semenova, Kalah Siegel, Mark Suleymanov, Andee Tagle, Shaydanay Urbani, Isvett Verde and Reece Williams.
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Guests in this episode include: Nick Bilton, Josh Greene, Christoph von Hugo from Mercedes Benz, Michael Taylor, Amanda Aronczyk, Raj Rajkumar, Bill Ford Jr.
Photo illustration Jared Bartman
From the Radiolab podcast: Most of us would sacrifice one life to save five, but what if that one had to die by your hand?
Most of us would sacrifice one person to save five. It’s a pretty straightforward bit of moral math. But if we have to actually kill that person ourselves, the math gets fuzzy.
That’s the lesson of the classic Trolley Problem, a moral puzzle that fried our brains in an episode we did almost 20 years ago, then updated again in 2017. Historically, the questions posed by The Trolley Problem are great for thought experimentation and conversations at a certain kind of cocktail party. Now, new technologies are forcing that moral quandary out of our philosophy departments and onto our streets.
So today, we revisit the Trolley Problem and wonder how a two-ton hunk of speeding metal will make moral calculations about life and death that still baffle its creators.
Special thanks to Iyad Rahwan, Edmond Awad and Sydney Levine from the Moral Machine group at MIT. Also thanks to Fiery Cushman, Matthew DeBord, Sertac Karaman, Martine Powers, Xin Xiang, and Roborace for all of their help. Thanks to the CUNY Graduate School of Journalism students who collected the vox: Chelsea Donohue, Ivan Flores, David Gentile, Maite Hernandez, Claudia Irizarry-Aponte, Comice Johnson, Richard Loria, Nivian Malik, Avery Miles, Alexandra Semenova, Kalah Siegel, Mark Suleymanov, Andee Tagle, Shaydanay Urbani, Isvett Verde and Reece Williams.
🎧 Subscribe to Radiolab wherever you listen to podcasts: bit.ly/3trXDLe
🔎 Subscribe to Radiolab on YouTube: bit.ly/3I9KI53
🖋 Subscribe to Radiolab’s Newsletter: radiolab.org/newsletter
🌱 Check out Radiolab's Starter Kit Playlist: bit.ly/3sX8f4P
👍 Like this video ✏️ and leave us a comment!
Follow Radiolab:
Instagram — instagram.com/radiolab
Twitter — twitter.com/Radiolab
Facebook — facebook.com/Radiolab
Support Radiolab by becoming a member of The Lab today: radiolab.org/the-lab
Guests in this episode include: Nick Bilton, Josh Greene, Christoph von Hugo from Mercedes Benz, Michael Taylor, Amanda Aronczyk, Raj Rajkumar, Bill Ford Jr.
Photo illustration Jared Bartman
