Abstract

We will emphasize the importance of some ontological principles that, from Aristotle on at least, have dominated the representations we have on nature: the principle of realism; the principles of locality-contiguity; the principle of individuality; the principles of causality – determinism. Let’s remember that Einstein was defending an epistemological position according to which the elimination of anyone of these principles would make physics impossible, at least in the conventional sense of the term. We will ask what remains of the classical principles given the ontological and gnoseological weight that some concepts linked to Quantum Formalism have in contemporary Physics, such as Contextuality, or Entanglement. And we will use Entanglement Swapping and Delayed Choice Entanglement Swapping. In complement to the above, in relation rather with the principles of causality and determinism, we will go back to a subject already presented by outstanding physicists: the old Aristotelian problem of dynamis-energeia related to the situation before the measurement in which the physicist does calculations. It is held that the modality dynamis-energeia that holds in certain quantum experiments would constitute a real automatism and would not be then reducible to Aristotelian polarity.