# Polymarket bots, lithium found: lots!, marathon shoe thoughts

An episode of [The Indicator from Planet Money](https://invisiblenetwork.ai/podcast/1320118593), 1 May 2026, 8:55.

Audio: https://prfx.byspotify.com/e/play.podtrac.com/npr-510325/npr.simplecastaudio.com/0a4e8d3b-fe23-4948-9e39-20fcf16f9331/episodes/1c9bc1f6-822c-487b-a7e8-17a4a40d08bd/audio/128/default.mp3?awCollectionId=0a4e8d3b-fe23-4948-9e39-20fcf16f9331&awEpisodeId=1c9bc1f6-822c-487b-a7e8-17a4a40d08bd&feed=IFy3imsg&t=podcast&e=nx-s1-5806337&p=510325&d=535&size=8565325

It’s Indicators of the Week (now on YouTube!). It’s our weekly look at some of the most fascinating economic numbers from the news. On today’s episode: who wins and loses their Polymarket bets, an American lithium motherlode, and the economics of lightweight running shoes. Related episodes: The race to produce lithium Advanced Fairness At The Marathon For sponsor-free episodes of The Indicator from Planet Money, subscribe to Planet Money+ via Apple Podcasts or at plus.npr.org. Fact-checking by Julia Ritchey and Sierra Juarez. Music by Drop Electric. Find us: TikTok, Instagram, Facebook, Newsletter. See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. NPR Privacy Policy

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