 Taking a somewhat broader view, the worry concerning global models arises from a conception of physics that is widely held by philosophers—a conception according to which one of the fundamental aims of physics is to present us with global dynamical models of the dynamical laws that adequately represent the universe as a whole. The worry then is that causal models, in particular on an interventionist conception of cause, cannot get a foothold within such a globalist conception of physics. This globalist conception can be contrasted with one according to which the laws of physics are understood as rules governing localized subsystems of the universe (Ismael 2016; see also Cartwright 1999). Defenders of the latter conception would argue not only that it can more easily accommodate causal reasoning than the globalist picture but also that it fits the day-to-day practice of most of physics considerably better than the globalist conception.