In a ritual I’ve undertaken at least a thousand times, I lift my head to consult an airport display and determine which gate my plane will depart from. Normally, that involves skimming through a sprawling list of flights to places I’m not going. This time, however, all I see is information meant just for me: Read more about Delta and Misapplied Sciences introduce parallel reality – a display that shows different content to different people at the same time without augmentation[…]