“It’s a bloody miracle,” said Jim Keller, a veteran chip designer whose résumé includes stints at Apple, Tesla and Intel and who now works at the A.I. chip start-up Tenstorrent. “Ten years ago you couldn’t do a hardware start-up.”The trends are not necessarily good news for chip customers, at least for the short term. Scarce supplies of many chips have manufacturers scrambling to increase production, and are adding to worries in Washington about reliance on foreign suppliers. Extra demand could extend the shortages, which are already expected to last into 2022.High demand was evident in earnings …
