Leidy Klotz on Why the Best Solutions Involve Less — Not More (People I (Mostly) Admire Ep. 45)

When we try to improve things, our first thought is often: What can we add to make this better? But Leidy, a professor of engineering, says we tend to overlook the fact that a better solution might be to take something away. He and Steve talk about examples from Leidy’s book Subtract: The Untapped Science of Less, and from their own lives.

Edward Glaeser Explains Why Some Cities Thrive While Others Fade Away (People I (Mostly) Admire Ep. 44)

An expert on urban economics and co-author of the new book Survival of the City, Ed says cities have faced far worse than Covid. Steve talks with the Harvard professor about why the slums of Mumbai function so well, high-quality housing in China sits empty, and declining cities hang on for so long.

Arne Duncan Says All Kids Deserve a Chance — and Criminals Deserve a Second One (People I (Mostly) Admire Ep. 43)

Former U.S. Secretary of Education, 3x3 basketball champion, and leader of an anti-gun violence organization are all on Arne’s resume. He’s also Steve’s neighbor. The two talk about teachers caught cheating in Chicago public schools and Steve shares a story he’s never told Arne, about a defining moment in the educator’s life.

America’s Math Curriculum Doesn’t Add Up (People I (Mostly) Admire Ep. 42)

A special episode: Steve reports on a passion of his. Most high-school math classes are still preparing students for the Sputnik era. Steve wants to get rid of the “geometry sandwich” and instead have kids learn what they really need in the modern era: data fluency. Originally broadcast on Freakonomics Radio, this episode includes an update from Steve about a project he launched to revamp the education system.

Dr. Bapu Jena on Why Freakonomics Is the Best Medicine (People I (Mostly) Admire Ep. 41)

He’s a Harvard physician and economist who just started a third job: host of the new podcast Freakonomics, M.D. He’s also Steve’s former student. The two discuss why medicine should embrace econ-style research, the ethics of human-challenge trials, and Bapu’s role in one of Steve’s, ahem, less-than-successful experiments.

Harold Pollack on Why Managing Your Money Is as Easy as Taking Out the Garbage (People I (Mostly) Admire Ep. 40)

He argues that personal finance is so simple all you need to know can fit on an index card. How will he deal with Steve’s suggestion that Harold’s nine rules for managing money are overly complicated? Harold and Steve also talk about gun violence — a topic Harold researches as a public-policy professor at the University of Chicago — and they propose some radical ideas for reducing it.

Aicha Evans Wants You to Take Your Eyes Off the Road (People I (Mostly) Admire Ep. 39)

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 know how she’s maintained her spark.

Sendhil Mullainathan Explains How to Generate an Idea a Minute (Part 2) (People I (Mostly) Admire Ep. 38)

Steve continues his conversation with his good friend, MacArthur “Genius Grant” recipient, and fellow University of Chicago economist. Sendhil breaks down the hypothesis of his book Scarcity, explains why machines aren’t competition for human intelligence, and tells Steve why it’s important to appreciate other people’s good ideas before developing your own.

Sendhil Mullainathan Thinks Messing Around Is the Best Use of Your Time (People I (Mostly) Admire Ep. 37)

He’s a professor of computation and behavioral science at the University of Chicago, MacArthur “Genius Grant” recipient, and author. Steve and Sendhil laugh their way through a conversation about the importance of play, the benefits of change, and why we remember so little about the books we’ve read — and how Sendhil’s new app solves this problem.

How Rahm Emanuel Would Run the World (People I (Mostly) Admire Ep. 36)

In this interview, first heard on Freakonomics Radio last year, 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 former mayor of Chicago, he says that cities are where problems really get solved.