Marshall McLuhan? Quentin Fiore? Frank Richardson? Terence Trent D’Arby? Theodor W. Adorno? Dear Quote Investigator: In 2019 the Italian conceptual artist and provocateur Maurizio Cattelan used duct tape to attach a banana to the wall of an art gallery. He dubbed the resultant artwork “Comedian”. After Cattelan sold the quasi-sculpture for a lucrative price he …