It could be argued that the most compelling visual art is no longer defined primarily by particular media (painting, sculpture, photography, video), or by particular subject matter (portraiture, landscape, still life, devotional image), or by particular strategies of representation (Cubism, Surrealism, Pop Art, Appropriation). Instead, it might be most accurate to say that the crucial art of the 21st century imagines everything to be its medium, subject matter, and means of realization. We consider what this development means for artists and art viewers.