  Damian’s main approach has been to show that divine omnipotence remains intact even though God cannot undo the done. In the supplementary approach, he pursues a different strategy: there is a sense in which it can be said, and not in a foolish way (non inepte), that God “can” (potest) bring it about that what has been done, has not been done. This can be proved as follows. Since God’s power (posse) is coeternal with God himself, it is immutably the same. Before the beginning of time, it was possible for God that none of those things that we know as the past would come into being. Therefore, this is possible for him now and always (620A–B).