 His argument depends on results proved within the ontological models framework of Harrigan and Spekkens (2010). Myrvold defends this framework as merely codifying a form of reasoning implicit in much of science and daily life which there is no good reason to reject when applied in the quantum domain. One reasons that an action on a physical system affects what one will experience later only via the physical transmission of that action’s effect from the system to events one later experiences. If so, then the action of preparing a system’s quantum state must affect some physical property of the system reflected in what the framework calls its ontic state.