"These forms of transparence have another value, they allow me to see, beyond the succession of planes, other forms, there are hollows within hollows, intervals within intervals, these successions of planes, of thresholds, form a complexity transparent as a mirror, but a mirror that would not be a frame, a mirror that one could contemplate continuously from all angles, in front, to the sides, behind, a crystal ball where one would divine the future of the forms." Paul Virilio