Deep Dive with John Lanchester on Knowing

The Consumer Price Index determines your grandmother's Social Security, your SNAP benefits, your divorce settlement, and — historically, at least — whether the president keeps his job. It is also, according to British journalist and novelist John Lanchester, intellectually thrilling. In the fourth episode of our Unsung series, Kelly talks with the writer The Economist called "a down-to-earth and witty guide to the most complicated ideas of our time" about what it means to live in a country that counts everything — and what happens when we start to lose faith in the numbers.If you haven't yet, pick up Michael Lewis's Who Is Government? and John Lanchester's new novel Look What You Made Me Do (Norton, May 2025).To connect with Kelly and get a list of her weekly takeaways, join Kelly's free Substack.