Maurizio Cattelan’s viral artwork, Comedian—a banana duct-taped to a wall—has sold for an astonishing $6.2 million (£4.9 million) at Sotheby’s in New York, shattering pre-sale expectations that estimated its value at one-fourth of the final price. The winning bid came from Chinese cryptocurrency entrepreneur Justin Sun, who outpaced six other bidders to secure the piece. […]