The Globe and Mail reports in its Friday, July 28, edition that four years ago, in an on-line manifesto, Elon Musk wrote that X, formerly Twitter, would not only be central to written communications but have audio, video, payments, commerce and more. A New York Times dispatch to The Globe reports that the idea was akin to that of an "everything app" espoused recently by Mr. Musk. However, the dream belonged to Meta chief executive officer Mark Zuckerberg. In a 2019 blog post, Mr. Zuckerberg outlined how he would turn WhatsApp into an app that could be a platform for many "kinds of private services." In Silicon Valley, the pursuit of an everything app has come up time and again. Mr. Zuckerberg tried it. So did Dara Khosrowshahi, the CEO of Uber. Evan Spiegel, the head of Snap, said he wanted to go for it, too. Yet those efforts fell short. Now Mr. Musk is chasing the same goal with his X app -- and is likely to face the same challenges. Mr. Musk has been enamoured with an everything app since at least last year. Weeks before closing his $44-billion (U.S.) acquisition of Twitter in October, he tweeted that his purchase would be "an accelerant to creating X, the everything app."