John Perry Barlow:

People rarely think of phone calls as being so casually cheap that one would simply leave the connection open for ambient telepresence and occasional conversation. To create shared spaces that span the planet, and to do so whenever you feel like it, and to leave them unpurposefully in place for hours, is not something people have done very often before.

The next step is to make those shared spaces larger, so that multiple people can inhabit the same auditory zone, entering and leaving it as though it were a coffee house. This will change the way people live.