ours is an era of decline that has turned from the outward to the inward obsession with identity and “authenticity,” both personal and tribal, fueled by digital connectivity. Paradoxically, social media in this sense is anti-social, leading to the disintegration of community through a kind of connected isolation.

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