Blair Kamin explains how it would work:
"With the aid of digital ceramic printing technology, the glass will be imprinted with a ghost-like image of the building's original façade (left). Though the technology has been used before, Columbia is touting the large-scale historical recall as a first of its kind.The architect, Elva Rubio of the Chicago office of Gensler, compares the veil-like design to the Shroud of Turin.
Will it work? It all depends whether God is in details."