Worlds then are understood as physically real but contingently emergent entities that are identified with approximate substructures of the quantum state, or as Wallace puts it, "mutually dynamically isolated structures instantiated within the quantum state, which are structurally and dynamically 'quasiclassical'" (2010, 70).
First, molecules involved in MADA pathogenesis are not only those regulating chromatin organization but contingently also the integral membrane proteins SUN1 and SUN2 and likely other factors implicated in nuclear positioning and nucleo-cytoskeleton interplay, a relevant aspect in adipose tissue, skin, and bone development, which are target tissues in MADA patients.
Parallel points holds for 'I am here now': it is valid, but only contingently true at some contexts in some structures.
In general we can distinguish two kinds of opaque context: intensional contexts, which allow the substitution of necessarily co-referring expressions but not contingently co-referring expressions; and hyper-intensional contexts, which do not even allow the substitution of necessarily co-referring expressions.
This third type, which I call "synthetic commodity money," resembles fiat money in having no nonmonetary value; but it resembles commodity money in being not just contingently but absolutely scarce.
This is the standard thinking behind the idea that the divine perfections are exhibited by God not only contingently, but necessarily: a perfect being is not only omniscient, but necessarily omniscient; a perfect being is not only omnipotent, but necessarily omnipotent; and so forth.
It might not hold for abstract objects, which according to many exist not contingently, but necessarily if at all.
Indeed, some contend that the basic observation that supports the former thesis also lends support to the latter thesis: wide variation in the motivational impact of moral judgments suggests not only that they motivate contingently but that they do so via some conative state.
The point here is not that we must successfully identify which representations necessarily belong together and which are merely associated contingently, but rather that to be self-conscious we must at least make this general distinction between objective and merely subjective connections of representations.
Most important for the present discussion, the science needed to resolve legal disputes very often does not preexist the controversy (Jasanoff 1995), but rather is contingently constructed to answer case-specific questions that might never have arisen through pure or paradigm-generated science, or not in comparable form.
In the 1970s the American philosopher Saul Kripke challenged the Kantian view by arguing persuasively that there are propositions that are necessarily true but knowable only a posteriori and propositions that are contingently true but knowable a priori.
