Everettian actualism

There is an interpretation of Everettian Quantum Mechanics [EQM] known as the Relative Facts Interpretation [RFI] which is a single-world interpretation of EQM and takes generally all facts about objects to be relational. In this paper I argue that from the perspective of the RFI the best theory of modality for EQM is actualism rather than some version of modal realism, as has been suggested by Alastair Wilson. To argue this I draw a parallel between actualism as it was developed by Alvin Plantinga and actualism as it can be developed from the context of the RFI of EQM. The contention is not that Plantinga-style actualism is the only way one can be an actualist with respect to EQM, but rather that showing how one can be an actualist in at least one way, demonstrates that there are options for a modal metaphysics from the context of EQM.