When Michael Lewis first met him, Sam Bankman-Fried was the world's youngest billionaire and crypto's Gatsby. CEOs, celebrities, and leaders of small countries all vied for his time and cash after he catapulted, practically overnight, onto the Forbes billionaire list. Who was this rumpled guy in cargo shorts and limp white socks, whose eyes twitched across Zoom meetings as he played video games on the side?

In Going Infinite Lewis sets out to answer this question, taking readers into the mind...