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Natural Gas Could Get Priority Over Renewable Energy in Largest U.S. Grid

Federal regulators approved a proposal from the nation’s largest grid operator that will give primacy to 50 new power plants, a decision to help meet the country’s growing electricity demand.

© Tristan Spinski for The New York Times

A natural gas power plant in Westbrook, Maine. Utilities and grid operators in recent months have shifted from renewable energy and toward natural gas generations.

What’s Best, According to the Italian Mathematician Alessio Figalli

Alessio Figalli studies optimal transport, a field of math that ranges from the movements of clouds to the workings of chatbots.

© Michelle Gustafson for The New York Times

Alessio Figalli, a mathematician at ETH Zurich and a current member at the Institute for Advanced Study in Princeton, N.J., investigates “optimal transport,” the study of starting points, end points and the paths between.

OpenAI Rejects Elon Musk’s $97.4 Billion Bid for Control of the Company

Bret Taylor, the chairman of OpenAI’s board, said the artificial intelligence company was “not for sale.” Mr. Musk is separately raising money for his A.I. start-up, xAI.

© Jim Wilson/The New York Times

Bret Taylor, the chairman of the OpenAI board.

What’s Best, According to the Italian Mathematician Alessio Figalli

Alessio Figalli studies optimal transport, a field of math that ranges from the movements of clouds to the workings of chatbots.

© Michelle Gustafson for The New York Times

Alessio Figalli, a mathematician at ETH Zurich and a current member at the Institute for Advanced Study in Princeton, N.J., investigates “optimal transport,” the study of starting points, end points and the paths between.

How Did DeepSeek Build Its A.I. With Less Money?

The Chinese start-up used several technological tricks, including a method called “mixture of experts,” to significantly reduce the cost of building the technology.

© Caroline Brehman/EPA, via Shutterstock

DeepSeek used several technological tricks to significantly reduce the cost of building its system.

What DeepSeek’s Success Tells Us About China’s Ability to Nurture Talent

China produces a vast number of STEM graduates, but it hasn’t been known for innovation. Cultural and political factors may help explain why.

© Costfoto/NurPhoto, via Getty Images

A student preparing for the 2025 national postgraduate entrance exam at Hebei University of Engineering in Handan, China, in December.
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