689. Here’s Why Your Hamburger Just Got So Pricey

That’s the question at the heart of a battle between Kalshi and state gambling regulators. As prediction markets boom, there are other questions, too — about insider trading, market manipulation, and whether the public has turned against them. (Part two of a two-part series.)

The promise is that they can beat the experts at predicting inflation, elections, and FDA approvals. But right now, roughly 90 percent of the action is sports. Is this a future we want to bet on? Stephen Dubner speaks with, among others, the C.E.O. of Kalshi. (Part one of a two-part series.)

He was thriving in the N.F.L., but then he decided to focus on mathematics — a subject he now teaches at M.I.T. John walks Stephen Dubner through the whole story, teaches him some blocking techniques, and explains why some infinities are bigger than others. If you'd like to see the video version of Better in Person, you can watch it on YouTube or Apple Podcasts.

For decades, teams have tried (and mostly failed) to predict which college quarterbacks will thrive in the pros. Is the science finally catching up? Stephen Dubner speaks with a scout, a psychologist, a data warrior, and a Hall of Fame quarterback who nobody wanted.

He started with one small shop in London. He has since resuscitated both Barnes & Noble and Waterstones. He tells Stephen Dubner exactly how he does it. If you'd like to see the video version of Better in Person, you can watch it on YouTube or Apple Podcasts.