From First Cause to Personal Deity: An Epistemological Analysis of Inferential Overreach in the Modern Kalam Cosmological Argument

This paper argues that the Modern Kalam Cosmological Argument, most prominently defended by William Lane Craig, fails not merely in its theological conclusion but in the structural coherence of its causal framework. While the argument is widely presented within contemporary religious discourse as a demonstrative proof of a personal God, this study contends that such a claim rests upon a category-level expansion of causal reasoning beyond its domain of conceptual legitimacy. Through formal reconstruction, the paper identifies a critical asymmetry between the modest conclusion warranted by the syllogism—namely, that the universe has a cause—and the amplified theological attributes subsequently inferred. It argues that the application of causality to a purportedly atemporal state entails a conceptual transposition: causal relations, ordinarily defined within temporally structured systems, are redeployed in a context where temporal differentiation is absent. This move requires substantive metaphysical redefinition rather than straightforward logical application. Furthermore, the transition from “first cause” to “personal, intentional agent” is shown to constitute a non-deductive inferential escalation lacking independent justification. The analysis exposes a structural tension within the argument: either the causal principle is universal, in which case the exception granted to the proposed deity undermines its generality, or it is not universal, in which case its application to the totality of existence becomes epistemically unwarranted. The paper concludes that the Kalam argument does not deliver explanatory closure nor demonstrative proof. Instead, it functions through conceptual extension and inferential amplification that exceed the epistemic warrant of its premises. As such, its presentation as a logical proof of theism is philosophically indefensible.