The A.I. Boom Is Driving the Economy. What Happens if It Falters?

A windfall for companies that build data centers and their suppliers is overshadowing weakness in other industries.

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The Fate of Google’s Ad Tech Monopoly Is Now in a Judge’s Hands

A judge queried lawyers about whether a breakup made sense during closing arguments on how to fix the tech giant’s dominance in online advertising.

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The A.I. Boom Has Found Another Gear. Why Can’t People Shake Their Worries?

It is a time of superlatives in the tech industry, with historic profits, stock prices and deal prices. It’s enough to make some people very nervous.

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The Privacy Battle in Our Brains

My colleague talks about technology that can actually read our minds — and maybe even change them.

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To Meld A.I. With Supercomputers, National Labs Are Picking Up the Pace

A.I. has added urgency to the U.S. national laboratories that have been sites of cutting-edge scientific research, leading to deals with tech giants like Nvidia to speed up.

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Nvidia Earnings Show Profit Jumped 65% to $31.9 Billion

The company, which makes the computer chips essential to the artificial intelligence boom, also said revenue in its recent quarter rose to $57 billion.

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Yann LeCun, a Pioneering A.I. Scientist, Leaves Meta

Dr. LeCun’s departure follows a shake-up in Meta’s artificial intelligence efforts, as Mark Zuckerberg pushes his company to keep up in the tech race.

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Saudi Arabia Backs Elon Musk’s xAI With Data Center Deal

Mr. Musk’s xAI will work with the Saudi artificial intelligence company Humain on a new data center, part of Crown Prince Mohammed bin Salman’s effort to diversify his country’s economy.

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Larry Summers Resigns From OpenAI’s Board

Mr. Summers’ departure from the artificial intelligence company’s board followed revelations of his communications with the disgraced financier Jeffrey Epstein.

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How Trump and Nvidia’s C.E.O. Became Partners on the International Stage

Over the last 10 months, President Trump has become close with Jensen Huang, Nvidia’s chief executive, as the company’s chips have become a tool in trade and peace talks.

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