The modal properties of the principle of the causal closure of the physical have traditionally been said to prevent anything outside the physical world from affecting the physical universe and vice versa. This idea has been shown to be relative to the definition of the principle. A traditional definition prevents the one universe from affecting any other universe, but with a modified definition, e.g., the causal closure of the physical can be consistent with the possibility of one universe affecting the (...) other universe. Gamper proved this modal property by implementing interfaces between universes. Interfaces are thus possible, but are they realistic? To answer this question, I propose a two-step process where the second step is scientific research. The first step, however, is to fill the gap between the principles or basic assumptions and science with a consistent theoretical framework that accommodates the modal properties of an ontology that matches the basic assumptions. (shrink)

Standard definitions of causal closure focus on where the causes in question are. In this paper, the focus is changed to where they are not. Causal closure is linked to the principle that no cause of another universe causes an event in a particular universe. This view permits the one universe to be affected by the other via an interface. An interface between universes can be seen as a domain that violates the suggested account of causal closure, suggesting a view (...) in which universes are causally closed whereas interfaces are not. On this basis, universes are not affected by other universes directly but rather indirectly. (shrink)

According to Gamper, one function of science is to determine how the world is. Science, Gamper continues, rests on a set of basic assumptions, and the gap between basic assumptions and science should be filled by ontological frameworks that accommodates the modal properties of such assumptions. Different frameworks may surely suggest different modal properties. Thus, in so far as we use different basic assumptions, we can have different ontologies with different modal properties. Ontologies affect, in turn, science, which, however, has (...) the power to falsify the ontological frameworks. The aim of this article is to show a possible trouble of Gamper's proposal, here considered as applied to the geographical debate. (shrink)