What is art? The arts establishment has a simple answer: anything is art if a reputed artist or expert says it is. Though many people are skeptical about the alleged new art forms that have proliferated since the early twentieth century, today's critics claim that all such work, however incomprehensible, is art.A groundbreaking alternative to this view is provided by philosopher-novelist Ayn Rand (1901–1982). Best known as the author of The Fountainhead and Atlas Shrugged, Rand...