 Richard Swinburne notes that an explanation is complete when “any attempt to go beyond the factors which we have would result in no gain of explanatory power or prior probability” (2004: 89). However, explaining why something exists rather than something else or than nothing and why it is as it is gives additional explanatory power in explaining why a universe exists at all. Gale (1991: 257–58) concludes that if we are to explain the parts of the universe and their specific concatenation, we must appeal to something other than those parts.