Abstract
Explaining why there is something rather than nothing is one of theology's primary tasks. Recent scientific findings in cosmology have suggested a new theological task: explaining why there is something rather than everything. This task arises because of the conjunction of two intriguing properties of our universe: its strong biophilic selection effects and its apparent causal-connectedness on its largest scales. Current explanatory paradigms - respectively the anthropic principle and the inflationary universe - have suggested to many that our observable universe is a small part of a much larger structure called the multiverse. A multiverse presents us with a containment problem, since its logical extension suggests that anything that can exist, does exist. I argue such a perspective is incompatible with the foundations of both science and theology. As an antidote, I propose the altiverse: a set of possible alternatives that logically exist but are not physically realized.