Kevin Weil and Bill Peebles are leaving OpenAI as the company shuts down Sora and folds its science team, signaling a sharp pivot away from consumer moonshots toward enterprise AI.

For her new research on the brain’s plumbing system, neuroscientist Maiken Nedergaard had to hone many techniques. Among them — coaxing her lab mice into restful sleep, even as they lay on microscope beds with tiny fiberoptic wires threaded into their brains.  

“It was really hard to get the mice to sleep naturally,” said Nedergaard, who spent weeks cuddling the animals in her hands, so they’d learn to feel safe. “But then we said, ‘we really want to not have them disturbed.’”

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© J. Adam Fenster / University of Rochester