A radical thought experiment transforms the lives of a new breed of philanthropists, as they follow the logic of altruism to extraordinary lengths. The most famous convert to the Effective Altruism movement, Sam Bankman-Fried, is either a humanitarian hero, a con artist at an astonishing scale, or most bafflingly, both. <hr> For a full list of sources, see the show notes at <a href="https://timharford.com/">timharford.com</a>. Get ad-free episodes, plus an exclusive monthly bonus episode, to Cautionary Tales by subscribing to Pushkin+ on Apple Podcasts or Pushkin.fm. Pushkin+ subscribers can access ad-free episodes, full audiobooks exclusive binges, and bonus content for all Pushkin shows. Subscribe on Apple: <a href="http://apple.co/pushkin">apple.co/pushkin</a> Subscribe on Pushkin:&nbsp;<a href="https://www.pushkin.fm/join-pushkin">pushkin.fm/plus</a>See <a href="https://omnystudio.com/listener">omnystudio.com/listener</a> for privacy information.

"I get in trouble when I say things like this" - Michael Lewis on Sam Bankman-Fried

We tell our children unsettling fairy tales to teach them valuable lessons, but these Cautionary Tales are for the education of the grown ups &ndash; and they are all true. Tim Harford (Financial Times, BBC, author of &ldquo;The Data Detective&rdquo;) brings you stories of awful human error, tragic catastrophes, and hilarious fiascos. They'll delight you, scare you, but also make you wiser. New episodes every Friday.