We think of Facebook as something personal, because it has a password and most of the content is personal in nature, but it is public.  It is open space.  We think the lock on the gate let’s us in, but in fact, the lock on the gate let’s us out.

We think of a public square as public space.  But with headphones and heads-down mobile technology, it might be more of a private experience.  Add to this augmented reality with personal interests represented and the public square might be very private.

As the lines between public and private space and information blur, what are the implications to privacy, to communication, and to the responsibility we have to our fellow users of these spaces and systems?