[T]he visibility of styles is itself a product of historical consciousness. ... The very notion of "style" needs to be approached historically. Awareness of style as a problematic and isolable element in a work of art has emerged in the audience for art only at certain historical moments - as a front behind which other issues, ultimately ethical and political, are being debated.
Susan SontagInstead of just recording reality, photographs have become the norm for the way things appear to us, thereby changing the very idea of reality and of realism.
Susan Sontag