Elon Musk owns Twitter. Here's what he must decide next.

When Jack Dorsey stepped down as CEO of Twitter in November 2021, the company seemed vaguely at peace for the first time in its tumultuous 15-year history. True, the stock wasn’t lighting any fires, but the company had navigated its way through the Trump storm with a world-changing ban. Trolls and bots were still a problem, but...