Easy way to tell a faked 3D display: look for imagery lying along a line of sight that doesn't intersect the display medium. For example, the dinosaur's head an

Easy way to tell a faked 3D display: look for imagery lying along a line of sight that doesn't intersect the display medium. For example, the dinosaur's head and the tops of buildings stick out above the display's edges as seen from the viewer's location in the video. Objects may be in front or behind the display's surface, but the display medium has to lie in front or behind every part of the object. For all practical purposes, photons travel in straight lines, and require some medium to create or redirect them. It is extremely unlikely that anyone will suddenly discover an easy way to change that fact.