Trump’s chaos is forcing the usually methodical chips industry to learn how xfto pivot quickly

A week is a long time in politics. But in Donald Trump’s world, even a day can feel like an eon. On Tuesday last week, the United States approved the export of Nvidia’s H200 GPUs—the second-most advanced computer chips powering the generative AI revolution—to markets that include China.

The decision was granted with caveats. Supplies could be forestalled if the U.S. began running short, for one thing. But it was an approval. Then, 24 hours later, the White House levied a 25% tariff against...