X has stopped working in what appears to be a major outage. The site, formerly known as Twitter, refused to load in both its app and website form. Opening the website instead showed the company’s “X” ...

Mr. Ford is an essayist and a technologist. On weekday evenings, heading home on the subway from Union Square in New York City, I log into an A.I. tool from my phone and write a prompt. “Look at the ...