 The Greek commentators concentrated on whether potentiality has to precede motion or is simultaneous with it, and Philoponus adduced heavy arguments against potentiality preceding motion (Puig Montada 1999). Averroes followed the tradition of those commentators for a long time, he knew well the contributions by al-Fārābī and Avempace to the discussion and he sided with them. The beginning of the Long Commentary hints at it: