Bluesky’s Quest to Build Nontoxic Social Media

Jay Graber, the C.E.O. of the upstart social-media platform Bluesky, arrived in San Francisco the Sunday after Donald Trump’s reëlection and holed up in a hotel room. She’d spent the previous days road-tripping down the West Coast from her home, in Seattle, stopping at beaches and redwood groves along the way, and in San Francisco she’d hoped to remain half in vacation mode. But now Bluesky was seeing a surge in new users, and it was looking as if she’d need all hands on deck. “There was momentum,” Graber recalled recently, adding, “It was just picking up day by day.”