 What is important is that  (AI)  is an attempt to define fundamentality in the most general terms possible, using a very broad notion of metaphysical dependence. There is, however, at least one kind of dependence that we will likely wish to exclude from D, namely, modal dependence. The reason for this is simple: nothing will be independent in the sense of (AI) if modal independence is required (cf. Wang 2016). This is evident if we consider some necessary existents, such as numbers (assuming that numbers exist necessarily), for it is necessarily the case that the number 2 exists if Socrates does. Hence, the existence of Socrates necessitates the existence of the number 2. Moreover, the number 2 necessitates the existence of the number 3 and the other way around. This obviously generalizes, resulting in no entity whatsoever being “absolutely existentially modally free”, as Wang (2016) puts it.