Modern atheism reckons itself to be synonymous with skepticism mainly due to the grossly mistaken assumption that it makes no positive claim for itself, but rather simply rejects a single positive claim; i.e. the claim “God is.” So this type of “prove it” argument is valid only if the notion of God were not a hypothesis at all. God is and has always been an explanatory hypothesis for the existence of the visible universe and everything in it. In other words, it is not enough to simply say “It was not God” in response to the question “Where did everything come from?” Nor is it enough to say "prove it" or to simply hide behind the words “I do not know.” The atheist must substitute another hypothesis in God’s place in order to justify his rejection of God, and furthermore he must provide evidence for that hypothesis. Until that event comes to pass, the theist remains justified in his belief, albeit an uncertain belief. Until someone can provide a satisfactory hypothesis for the universe, God, properly described, remains the most viable alternative.