PSIAD’s core is a two-part proof centered on the concept of Genuine Personal Control (GPC)—a concept often referred to as agent-causation, volition and conscious will. Lemma 1 shows that GPC denialism is self-refuting, while Lemma 2 shows that physicalism/materialism necessitates GPC denialism. Thereby PSIAD at large shows physicalism to be self-refuting. I.e., It shows that GPC stems from another foundation and that accepting any corresponding counter (by way of compatibilism, epiphenomenalism, quantum indeterminacy, emergentist/nonreductive physicalism, property dualism, arguments from incredulity, etc.)—provably entails needlessly abandoning fundamental principles of both physics and logic. The appendices then survey the literature to underscore supplementary points such as the long-untenable state of contemporary physicalism and the great scientific cost of continuing to neglect Foundational Dualism in favor thereof.