Nvidia Is Spending $6 Billion to Build a Powerful U.S. Alternative to Chinese AI

A sweeping agreement with startup Poolside aims to build an open artificial-intelligence ecosystem in the U.S.…

Are Refurbished Phones Dangerous? Here’s How to Avoid the Risks

As prices rise, the market for used iPhones and other devices is thriving—but opting for secondhand…

Data-Center Disenchantment

Plus, buying a refurbished phone, OpenAI’s shaky finances, the $3 trillion in off-balance-sheet AI debt and…