“For a long while—from about the late ’80s to the late-middle ’90s, Wall Street to Jerry Maguire—carrying a mobile phone seemed like a haughty affectation. But as more people got phones, they became more useful for everyone—and then one day enough people had cell phones that everyone began to assume that you did, too. Your friends stopped prearranging where they would meet up on Saturday night because it was assumed that everyone would call from wherever they were to find out what was going on. From that moment on, it became an affectation not to carry a mobile phone; they’d grown so deeply entwined with modern life that the only reason to be without one was to make a statement by abstaining. Facebook is now at that same point—whether or not you intend it, you’re saying something by staying away.”

— Slate