 Inspired by earlier Armstrong, Perovic (2016) has proposed a non-necessitarian dependence model for particulars and universals in states of affairs. On this model, the constituents of most states of affairs such as this chalk being white exhibit mutual generic existential dependence. This simply captures the idea that a particular piece of chalk presumably cannot exist without having some color or other, it is generically existentially dependent upon some color universal. Similarly, the universal whiteness is generically existentially dependent on some concrete particular, for it cannot exist without inhering in some concrete particular or other, but it need not be the particular piece of chalk a. However, the state of affairs this particular chalk being white exhibits the strongest kind of dependence on its constitutive particular and universal—namely, it seems to exhibit one-sided specific existential dependence on its constituents. The reason why specific states of affairs seem to exhibit such strong existential dependence, is because of the simple fact that any change in a particular or in a universal would bring about a different state of affairs. 