Now, Revolut’s jumping on the Lightning Network bandwagon, too, with a promise for faster and cheaper Bitcoin transactions. Sounds great, right? Maybe not. Even as the headlines shout “adoption!” I don’t resist this instinctive tightening of my stomach into a ball of dread. This sounds a lot less like a...

Decentralized finance, or DeFi, is revolutionizing the way individuals manage and grow their wealth at a blistering pace. It’s the nascent peer-to-peer system seeking to eliminate old third parties and centralized institutions from financial transactions. Instead of relying on banks and other financial intermediaries, DeFi uses blockchain technology to enable...