"In 2021 cryptocurrency went mainstream. Giant investment funds were buying it, celebrities like Tom Brady endorsed it, and TV ads hailed it as the future of money. Hardly anyone knew how it worked-but why bother with the particulars when everyone was making a fortune from Dogecoin, Shiba Inu, or some other bizarrely named "digital asset"? As he observed this frenzy, investigative reporter Zeke Faux had a nagging question: Was it all just a confidence...