Last month Jensen Huang, the boss of Nvidia, landed in Beijing with a clear message: the maker of the world’s leading artificial-intelligence (AI) chips planned to “unswervingly serve the Chinese market”. America would rather it didn’t. Just a few days before Mr Huang’s trip the Trump administration introduced new controls that, in effect, banned the company from selling its H20 processor to China. More rules are coming. Although on May 7th the administration said it would rescind tighter export controls proposed by the Biden administration, it plans to replace them with ones of its own.
