As Nicholas John points out, what is most striking about sharing as a metaphor is the extendibility of what is to be shared: from thoughts and pictures to information sources and life histories to everything and anything. Sharing our lives has come to imply a broader value of “openness and mutuality” but at the risk of mystifying the communities we supposedly form online.

Nick Couldry & Ulises A. Mejias, The Costs of Connection, loc. 514