“Thus what seems at first to be an art-theoretical paradox – the association of serial principles with the uniqueness of the subjective statement – leads to a new quality in the artistic description of reality: time as “writing time” and space as a geometric quantity no longer function illusionistically or as a narrative, but rather as autonomous, serial structures. Art is no longer the illustration of reality, but rather its equivalent.”
(Joachim Kaak, “Hanne Darboven, 7 Tafeln, II, 1972/73” in Hanne Darboven/John Cage: A Dialogue of Artworks, published by Hatje Cantz Publishers, Ostfildern-Ruit, 2000, p. 26)