Thursday to Saturday, from 2:30 p.m. to 7:30 p.m.
Free admission
After Interference: Anatomy of an Almost-Quantum Computer
Kaspar Ravel
- #exhibition
From Friday 17 October to Saturday 22 November 2025
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Galerie Wagner
19 Rue des Grands Augustins, 75006 Paris
Kaspar Ravel has created a work of a new sort: a computer without any electronic components, in which sheets of brass filter light. Visitors become the photons inside the machine.
Show in its entirety in Illusions Rediscovered at CENTQUATRE-PARIS, here the machine is not presented as a whole, but as a series of delicate, disassembled organs. Every layer of metal or paper represents a step of calculation, captured in the space. Visitors follow the path of a photon altered at every point through which it crosses.
Prints accompanying the pieces show what ordinarily isn’t visible: tiny forms of interference, error patterns, and the nuances of the interplay between light and material. These abstract prints are like x-rays of an invisible process and record the machine’s raw results.
→ Artist Kaspar Ravel is presenting the work Lost Lores of Logic in the Illusions Rediscovered exhibition at CENTQUATRE-PARIS from 11 October 2025 to 11 January 2026.
Cover © Kaspar Ravel