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No myth that curators are beholden to a "conversation," one that manifests by reinscribing and working around the general pool of artists we see commonly. Curators show certain art/artists to prove (and thus renew) their access to the structure that legitimates them. Reciprocal legitimization by no single curatorial/artist node but instead the conversational majority, arranging consensus by those delegates already given authority, e.g. curators, institutions. Access starts to look like legitimacy. This insight why CAD took off. Read Sanchez's "Contemporary Art, Daily." This why we see artists/exhibitions in triplicate, the same ones proffered around the globe. You proffer 3 givens, and one unknown. And so maybe artists make more enjoyable curators because they're freed from the profession's need to prove the contemporaneousness of the vision, you get something a bit more idiosyncratic, interesting.