Anomalous Phenomena and Consciousness: A Diagnostic Stress Test of Explanatory Frameworks

Abstract: Certain phenomena—psychedelic phenomenology, near-death experiences, terminal lucidity, psi effects, and mediumship—have remained persistently contested despite decades of investigation. Their resistance to clean integration into physicalist frameworks is not coincidental; it is diagnostic. This essay applies a diagnostic stress test to physicalism and analytic idealism across ten such phenomena, organized by evidential maturity into three tiers. The central question: do competing frameworks genuinely explain anomalies, or reclassify them? The central finding: physicalism's deepest problem is not predictive failure but that dismissive labeling—"hallucination," "coincidence," "noise"—blocks the investigation that would test its predictions. This essay does not argue that idealism is proven by these phenomena; it argues that physicalism's apparent explanatory coverage often conceals refusal to explain. Keywords: anomalous phenomena · near-death experiences · psychedelics · terminal lucidity · psi research · explanatory frameworks · physicalism · idealism Part of the Return to Consciousness research program — 26 philosophical essays exploring consciousness-first metaphysics. Full project: https://brunoton.github.io/return-to-consciousness/