The setup at NAI is a rear projection. The camera is located in the
hole on the side and will be hidden in the final installation.

This Image shows the spectators view, looking at the screen.
He sees a altered image of himself. A trace of his motion where
the contours of the surrounding become visible. Occasionally
there are snaps appearing that capture a colored image of the
scene and hold it for a while until they fade out. One of those
snaps is the bright rectangle at the hand.