Abstract

Multiple-universe theories (involving the saturation of a state space of alternative universes) enjoy growing popularity as proposed counters to the design-suggestiveness of increasingly impressive cosmic fine-tuning cases. In this paper I explore this type of counter, and argue that (i) multiple-universe theoriesdo not necessarily undercut the design relevance of cosmic fine-tuning, that (ii) both the required saturation and the hypothesized mechanisms supposed to generate such saturation face seriously non-trivial constraints, and that (iii) in some cases the specific characteristics of such saturations may themselves be suggestive of design.