Ha! Dyslexics untie. After I re-read the title correctly I half wished this would be about projecting random dot stereograms on the ceiling / wall. Dot stereog

Ha! Dyslexics untie. After I re-read the title correctly I half wished this would be about projecting random dot stereograms on the ceiling / wall. Dot stereograms might be hard as it would be difficult to get fine dots. But in principle it should be possible to project stereograms. That would be one perverse pun on 3D.