People were losing excitement about the internet, starting to articulate a set of new truisms. Facebook had become tedious, trivial, exhausting. Instagram seemed better, but would soon reveal its underlying function as a three-ring circus of happiness and popularity and success. Twitter, for all its discursive promise, was where everyone tweeted

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But gradually, social-media users became more comfortable sharing intimate details of their lives with strangers and corporations. ... They became more adept at putting on performances and managing their personal brand—activities that might impress others but that do not deepen friendships in the way that a private phone conversation will.  Once... See more