The historian of science Alexandre Koyré described the transformation that occurred in the move from a pre-Copernican image of a closed world to that of an infinite universe. Genetic criticism corresponds to a trend that is in many ways similar. In the past, editors aimed to establish a text in what they hoped would be a definite edition; genetic critics have put the text back into motion, opening it to the moving constellations that presided at its genesis. The textual ne varietur has been shaken up by an e pur si muove.