From a Washington Post editorial headlined “Farewell, feathered friend”:

Over the past few months, reports of Twitter’s death have been greatly exaggerated. Now, however, Elon Musk has made it official: Twitter — or, at least, “Twitter” — is no more. Let us mourn the cheery little blue bird.

The microblogging platform owner and Tesla CEO announced this weekend that Twitter would rebrand to “X.” The gambit is part of Mr. Musk’s long-standing desire to build what he has called an “everything app” — with communications, payments and any other functionality a consumer might desire all part of the package, much like Tencent’s WeChat in China or Grab in Southeast Asia. Or as Twitter CEO Linda Yaccarino tweeted (if we may still refer to it as “tweeting”), “X is the future state of unlimited interactivity.”