Who would like to have X-Ray vision? Certainly being able to see around an obstacle can help prevent accidents, as in the following video:
source newscientist
Here, a concrete block on display plays tricks with visitors by randomly selecting one, tracks his or her eye movements, computes the angle of view, and projects the view behind the block onto the block so that it looks like the visitor is seeing right through the block!
Durchsehen Exp. 01 (Docu) from Daniel Franke on Vimeo.
source PopSci
Read more at: Daniel Franke and Markus Kison.