Smartphones can relay patients' data to hospital computers in a continuous stream. Doctors can alter treatment regimens remotely, instead of making patients come in for a visit.
Identity means "how do I get known? How do I expressmyself?" and that's generally what I'm helping somebody do. It may be three dimensional, it may be a public space, it may involve government,it may involve cultural institutions, it may involve corporations, it may involve editorial publications - it can be anything, really.