I have the potency to act. I have the potency to write. Every one has. Only the perfect act has not potency anymore. An act is relative to its proper potency. The perfect act relative to the potency of writing is the Iliad, Moby Dick, Dune. Potency is imperfection. Most acts are also imperfect, only less. The prototypical imperfect act of writing is what I am doing right now.