God is traditionally taken to be a necessarily existing being who is unsurpassably powerful, knowledgeable, and good. The familiar problem of actual evil claims that the presence of gratuitous suffering in the actual world constitutes evidence against the existence of such a being. In contrast, the problem of possible evil claims that the possibility of bad worlds constitutes evidence against theism. How? It seems plausible to suppose that there are very bad possible worlds. But if God exists in every world, (...) then God exists in those, too. And if God exists in very bad worlds, some say, God is culpable for not ensuring that they are better. In what follows, I consider this argument, survey some responses, and offer a novel solution. Along the way, I argue that theists should maintain that the actual world is a multiverse featuring all and only universes worthy of being created and sustained by God, and – more controversially – I suggest that theists should embrace modal collapse: the claim that this multiverse is the only possible world. (shrink)

Scotus’ natural theology has distinctive claims: (i) that we can reason demonstratively to the necessary existence and nature of God from what is actually so; but not from imagined situations, or from conceivability-to-us; rather, only from the possibility logically required for what we know actually to be so; (ii) that there is a univocal transcendental notion of being; (iii) that there are disjunctive transcendental notions that apply exclusively to everything, like ‘contingent/necessary,’ and such that the inferior cannot have a case (...) unless the superior does; (iv) that an a priori demonstration of the existence of God is impossible because there is nothing explanatorily prior to the divine being, and so, reasoning must be a posteriori, from the real dependences among things we perceive to the possibility of an absolutely First Being (The First Principle); (v) that such a being cannot be possible without existing necessarily; and (vi) that the First Being (God) is simple, omni-intelligent, free (spontaneous), omnipotent and, positively infinite;[1] and moreover, (vii) that there is a formal distinction, that is more than a distinction within our concepts or definitions, among the divine attributes. He makes that first point obvious throughout his several treatments, that one cannot reliably reason from conceptual consistency for us to the real and formal possibility or necessity of something; one must reason only to those necessities that are conditions of the possibility of what is known to be actual. The schema of the reasoning is, in a word, that “only the existence of God can make an effect even possible”[2]. Thus, it is explicitly incorrect to classify him along with St Anselm, Descartes and Leibniz, among those who reason a priori to the being of God[3]. He characteristically and deftly argues by indirect proof. He supposes the opposite of his intended conclusion and deduces a contradiction between that supposition and certain self-evident, or previously proved propositions, thus, getting his own conclusion by using the principle that whatever entails the denial of what is already known to be so, is false and its opposite is true,[4] “si negatur negatio, ponitur affirmatio.”[5] He also uses the argument form, “ if ‘p’ is not necessary, then ‘not-p’ is possible”.. (shrink)

This paper examines the relationship between the classical theistic conception of God and modal realism. I suggest that realism about possible worlds has unwelcome consequences for that conception. First, that modal realism entails the necessity of divine existence eludes explanation in a way congenial to a commitment to both modal realism and classical theism. Second, divine knowledge is dependent on worlds independent of the creative role and action of God, thereby suggesting a limitation on the nature of divine knowledge and (...) on the nature of God's creative role. Third, modal realism indicates the existence of real, albeit non-actual, worlds of appalling evil threatening the classical conception of divine omnipotence and benevolence. (Published Online July 10 2006). (shrink)

It is spelled out in which sense God exists necessarily. Some contemporary accounts are criticised.