He Made Billions on Google and PayPal. Now, He’s Betting on News.

For all the insults that Mr. Musk and Mr. Trump traded on Thursday, don’t be surprised if they make up again days from now. In […]

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

Down the stairs, out the doors and onto the sidewalk, a Broadway show hits the street. Here’s how they pull it off.