The assumption is that restoration returns a work to its original state. The 22-year effort on Leonardo da Vinci's *The Last Supper*, which concluded with its reopening on May 28, 1999, proves the opposite. The goal was not revival, but stabilization. To halt decay. The fresco, painted on a damp refectory wall in Milan, began deteriorating within Leonardo's lifetime. Later, a door was cut through the bottom, slicing off Christ's feet. Restorers in the 18th century used glue and varnish. In the 19th, they used solvents. Each intervention left a layer of misinterpretation.
The recent project, led by Pinin Brambilla Barcilon, was an act of archaeological subtraction. Using microscopes, scalpels, and water-thin solvents, her team removed centuries of grime, overpaint, and well-intentioned glue. What emerged was not the vibrant, detailed scene of popular imagination. It was a fragment. Vast sections of the original pigment were gone forever, leaving only the *intonaco*—the base plaster layer—marked by Leonardo's initial charcoal sketch. The restored work is a palimpsest. The bold blues and reds are largely from the 16th century; the subtle shadows of a face, the delicate curl of a hand, those are Leonardo's. The power of the piece now lies in its stark evidence of loss. It is a conversation between the artist's intent and the relentless physics of time. We see not a finished painting, but the traces of its making and the fact of its leaving.