Taking a cue from a note of Duchamp's "Make a room made of mirrors..." coupled with his attempts at visualizing the 4th dimension, this room contains walls of mirrors which will reflect a computer monitor running a "Ready Made" computer program called "4-D"(which itself visualizes a sphere extruded into 4th dimensional space, rotating). This reflection repeated to infinity by reflection upon itself approaches another attempt of 4th dimensional visualization.

Representational space can be expressed as:
a) 2 dimensional space or "flat" drawings;
b) 3 dimensional space, which add depth -- as in sculptures, and
c) "The 4th Dimension," generally regarded as Time.

Duchamp's concept of 4-D was the more theoretical concept which was popular in the late 19th century: The 4th Dimension as a spatial extension of the 3rd Dimension, similar to the way that the 3rd is an extension of the 2nd 3 . In simpler terms, the analogy of a 2-D shadow cast by a 3-D object. Following the same premise, objects in a 3-D world would be projections of corresponding 4-D objects.

The lower section of The Large Glass is a 2-D projection ( in renaissance perspective) of 3-D objects. This room will use projection techniques to alter expected dimensional perception.