Perhaps because until now, privacy has been the other side of the coin to our identity. We have seen ourselves as individual entities, in contact with the outside world for sure, but at the same time always distinct from it. We have interacted with that outside world, but only in the way and at the times we have chosen. You have secrets, memories and hopes to which no one else has automatic access; a private life, distinct from a professional one, as well as a multifaceted one of individual friendships where we vary what and how much we confide in someone else. Above all you have an inner narrative, an ongoing thought process that is yours alone: until now.