Alibaba’s chair is the latest to warn of an AI bubble. Is that a problem for Nvidia? - MarketWatch
1. Alibaba's Joe Tsai warns of an AI spending bubble. 2. Chinese chips claim 20% lower costs for AI modeling versus Nvidia. 3. Negative commentary impacts AI semiconductor stocks slightly. 4. Nvidia's stock is 19% below its January high. 5. U.S.-China AI competition heightens with potential export control concerns.