Abstract
Why is there something concrete rather than nothing? There are many suggestions to explain the existence of our world. But a suggestion can rule out all others that leave no concrete thing unexplained and throw up no further why question. One such ultimate explanation may only be found in something that can carry its own explanation within itself. In this article, I attempt to find one such explanation for all existence. A variant of self-explanation, namely self-subsumption—obtaining of a fact literally in virtue of itself—may succeed in offering an ultimate explanation. One suggestion for a self-subsuming principle is that all possible worlds exist; however, it cannot satisfy us in our deep convictions concerning inductive inferences. Thus, I construct a self-subsuming ultimate explanation that is sufficient to fulfil the latter convictions. My hypothesis is based on the Axiological explanation and suggests that all intrinsically valuable possible worlds are required to exist; the latter fact also obtains as one of those intrinsically valuable possibilities and therefore is required to exist.