26. Memory Champion Nelson Dellis Helps Steve Train His Brain

26. Memory Champion Nelson Dellis Helps Steve Train His Brain

Author: Freakonomics Radio + Stitcher June 13, 2026 Duration: 35:18
He’s one of the world’s leading competitors, having won four U.S. memory tournaments and holding the record for most names memorized in 15 minutes (235!). But Nelson Dellis claims he was born with an average memory and that anyone can learn his tricks. Steve gives Nelson’s techniques a shot, without much hope — and is surprised by the result. This episode originally aired on May 7, 2021.

Steve Levitt, the Freakonomics co-author known for his unconventional economic lens, turns his curiosity toward the people who fascinate him in People I (Mostly) Admire. This isn't a series of dry interviews with predictable heroes; instead, Levitt seeks out genuinely interesting high achievers from all walks of life, engaging them in conversations that are as surprising as they are revealing. The premise is built on a personal, almost confessional note-he frames it as his own "interesting midlife crisis," a quest to understand the drives and obsessions of exceptional people. Within this podcast, you'll hear the intricate story of a renegade sheriff implementing unorthodox reforms within Chicago's jail system, and travel to the Arctic tundra with a biologist whose work uncovers fundamental secrets of evolution. In another episode, the mechanics of memory are unpacked through a trivia champion who mastered 160,000 flashcards. Produced by Freakonomics Radio and Stitcher, each conversation delves beyond surface-level success to explore the quirks, failures, and unique thought processes that define these individuals. It’s a series for anyone who enjoys deep dives into the minds that shape our society and culture, all through Levitt’s characteristically probing and often humorous dialogue. You come away from an episode not just with knowledge, but with a nuanced sense of the person behind the achievement.
Author: Language: en-us Episodes: 50

People I (Mostly) Admire
Podcast Episodes
39. Aicha Evans Wants You to Take Your Eyes Off the Road [not-audio_url] [/not-audio_url]

Duration: 48:34
She’s the C.E.O. of Zoox, an autonomous vehicle company. Steve asks Aicha about the big promises the A.V. industry hasn’t yet delivered — and the radical bet Zoox is making on a driverless future. Plus, Steve wants to kn…
36. How Rahm Emanuel Would Run the World [not-audio_url] [/not-audio_url]

Duration: 41:56
In this interview, Steve talks with the former top adviser to presidents Clinton and Obama, about his record — and his reputation. And Rahm explains that while he believes in the power of the federal government, as forme…
35. David Epstein Knows Something About Almost Everything [not-audio_url] [/not-audio_url]

Duration: 49:15
He’s been an Arctic scientist, a sports journalist, and is now a best-selling author of science books. His latest, Range: Why Generalists Triumph in a Specialized World, makes the argument that early specialization does…
34. Maya Shankar Is Changing People’s Behavior — and Her Own [not-audio_url] [/not-audio_url]

Duration: 44:58
She used to run a behavioral unit in the Obama administration, and now has a similar role at Google. Maya and Steve talk about the power (and limits) of behavioral economics and also how people respond to change — the to…
33. Travis Tygart Is Coming for Cheaters — Just Ask Lance Armstrong [not-audio_url] [/not-audio_url]

Duration: 45:10
He’s the C.E.O. of the United States Anti-Doping Agency (USADA), which, under his charge, exposed the most celebrated American cyclist as a cheater. And Steve’s been studying cheaters for the last 25 years, so he’s also…
32. Angela Duckworth Explains How to Manage Your Goal Hierarchy [not-audio_url] [/not-audio_url]

Duration: 50:47
She’s the author of the bestselling book Grit, and a University of Pennsylvania professor of psychology — a field Steve says he knows nothing about. But once Angela gives Steve a quick tutorial on “goal conflict,” he is…