AI’s $400 billion problem: Are chips getting old too fast?

In pursuit of the AI dream, the tech industry this year has plunked down about $400 billion on specialized chips and data centers, but questions are mounting about the wisdom of such unprecedented levels of investment.

At the heart of the doubts: overly optimistic estimates about how long these specialized chips will last before becoming obsolete.

With persistent worries of an AI bubble and so much of the US economy now riding on the boom in artificial intelligence, analysts warn that the wake-up call could be brutal and costly.

“Fraud” is how renowned…