Forgive me, if you can, for a bit of drift in this very serious thread.

   Y'know those holographic photos ya see, that set there, 2-dimensional in the frame, but somehow show up as 3D.? I was walking down the street in a south Chicago neighborhood with an old girlfriend; we're talking an old polish enclave where she had grown up. Looked in a store window and saw three of the 3D pictures in a group: Elvis, Jesus, and the Pope.