The Immersion project

There is an account, apocryphally, from medieval times, of a person walking into a room and being confronted with the sight of a man transfixed. The man in the room is holding something in his hands, staring at it. His eyes are glazed. His lips are moving soundlessly. His soul is elsewhere. The onlooker, unsettled, concludes that the man has been possessed by an evil spirit. In fact, he is simply doing something the onlooker has never seen done before: reading a book.