Follow the improbability. What drew that particular theory to the person’s attention, either the hypothetical Roman commoner or the person arguing that we can’t yet test their hypothesis about God? If the answer is “nothing”, as is literally the case for the imagined Roman, then we need not concern ourselves further with the matter. If the hypothesis about God is not already entangled with the world, it fares no better.
Follow the improbability. What drew that particular theory to the person’s attention, either the hypothetical Roman commoner or the person arguing that we can’t yet test their hypothesis about God? If the answer is “nothing”, as is literally the case for the imagined Roman, then we need not concern ourselves further with the matter. If the hypothesis about God is not already entangled with the world, it fares no better.