According to British Vogue, Marc Jacobs is back in the running for Dior, and could be confirmed as early as today. Unnamed sources floated the rumor at the Miu Miu show earlier today, where Jacobs sat front row next to Vogue's Grace Coddington, but so far nothing has panned out. Let this be a lesson to you gossip-mongers: In order to start a proper rumor, you must name a date that's at least a few days (or better yet, months) away. If you make up a story about something that might happen this afternoon, everyone will know you're a liar within a few hours. But if you give your falsehood enough time to gain momentum, you'll get a fair shot of doing real damage — or at least convince some people to make T-shirts about it.