This video shows something of what I think one corner of our holographic future could actually look like:
The artist, Darren Pearson, makes the moving images in a rather work intensive manner. He paints with light sticks in the air while the camera’s lens is open in a dark scene. It takes 24 paintings to make one second of movie. Ouch.
Presumably tools are coming along that will make it easier for us to paint in light. That’s one of my hopes, anyway.