“To hear the choreographer Deborah Hay talk, there is no overstating the connection between visual art and dance in New York in the 1960s, when the Judson Dance Theater movement was radically questioning the nature of performance… Today’s New York scene, in which the various art worlds and their audiences have largely retreated to their own corners, makes Ms. Hay’s experience — which was just as powerful for many visual artists — sound like an impossible utopia.” But some are working to reacquaint the genres…