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The Gerberian support's proposal of a third party in the usual object/viewer duo, a middleman standing watch to serve you the art, introduces the many others standing watch to bring this to you. The general supports of art - walls, lights, pedestals - are cold inanimate and, generally, ignored, and Gerber's proposition, their filling with blood, sedimented subjectivity, makes the walls seem alive and watching, that though they are painted white they contain just a different behind in them.
See too: Brian Calvin at Le Consortium, Sophie Nys at Crac Alsace