By the way, such a fundamental inexactness could be the basis of chaotic dynamical systems, not only chaotic in an epistemological sense ( = that we cannot make long-term predictions of such a system's behavior), but also in an ontological sense, that is, that Nature itself cannot make 'long-term predictions', which in fact means that Nature is not totally deterministic. This, if Nature cannot repeat a (given) nature exactly, that is, when it is intrinsically wavering. Or it could be that there happen to be no exact repetitions in the world, implying that we cannot make long-term predictions in chaotic systems, but Nature can, that is, Nature is nevertheless deterministic.