Definition: Referring to the understanding and interpretation of the ontology of the wave function in quantum mechanics. This involves what link one should use to go from wave function talk to talk of ordinary macroscopic objects.
More about the term: Because of Einstein’s relativity the Newtonian and Laplacian models have been abandoned. The present discussion of how God interacts with the world has shifted to quantum mechanics. There are over a dozen interpretations, which mathematically describe the quantum world. Objections from the principle of conservation are moot in an Einsteinian universe because it is not causally closed. Even so, certain quantum interpretations reject the principle of conservation such as the Ghirardi-Rimini-Weber (GRW) interpretation. In a theistic context, GRW makes sense of external causes having an ontological link to the physical world without violating conservation. See Bradley Monton, “The Problem of Ontology for Spontaneous Collapse Theories,” Studies in History and Philosophy of Modern Physics (2004): 9-10. Einstein was at odds with Niels Bohr, the father of quantum mechanics, when Bohr suggested the notion of indeterminism on the quantum level. This appalled Einstein, which brought the well-known response of, “God does not play with dice.” It is reported that Bohr’s response to Einstein was, “Don’t tell God what to do.”