Joshua Topolsky in The New Yorker:
Ultimately, Twitter’s service is so confused and undifferentiated in the market that it’s increasingly difficult to make a clear case for its existence. There are a small handful of features Facebook might add, or a separate app that it could easily create (as it did with Messenger and the photo-sharing stand-alone feature Moments) that would provide a similar but more consistent experience, with vastly more reach than anything the company can provide today (or tomorrow, for that matter). This is especially notable to all of us in the world of media, the people who fill these services with highly valuable and hotly traded “content,” such as the piece you’re currently reading. Social media is a scale game or a product game, and Twitter is failing at both.