Holography was easy enough, once the tech was there. The eye has a refresh rate and effective megapixel rating; it was just a matter of waiting for Moore’s Law to catch up.
Except for Clarence. He’s literally one in a million, part of a very small population whose eyes are always out of phase. Where everyone else sees opaque light, he sees nothing, or a flickering ghost.
Not that Clarence minds. He realized eventually that there must exist those who’d understand his ability to disbelieve illusions as a dangerous, valuable talent. After that, it didn’t take him long to find them.