By Devin Powell
Science fiction fans know what a 3-D display ought to look like.
The film Forbidden Planet showed them more than half a century ago. On a distant world once inhabited by an advanced alien civilization, human scientist Dr. Morbius discovers a table that can create holographic videos. He calls up a ghostly projection of his daughter that’s smaller than but otherwise identical to the girl herself.
“Aladdin’s lamp in a physics laboratory,” says an awed spacefarer peering over Morbius’ shoulder.