Bidirectional Constraint Closure and the Reflective Interface: A Scale-Invariant Model of Consciousness and Reality

Abstract Contemporary physics and cognitive science lack a unified framework capable of accounting for consciousness, coherence, and scale-invariant structure without invoking infinite regress, strong dualism, or unfalsifiable metaphysics. Building on prior work within Unified Consciousness Substrate Theory (UCST) and the Dimension-W research program, this paper introduces Bidirectional Constraint Closure (BCC) as a minimal ontological model. In BCC, reality emerges from two complementary, mirrored constraint regimes whose mutual limitation produces a non-spatial, scale-invariant Reflective Interface. We formally redefine Dimension-W not as a field or additional dimension, but as this emergent interface. We further map ancient Hindu Loka/Tala cosmological pairs to modern constraint-curvature types, demonstrating structural—not mythological—correspondence. Finally, we identify empirical signatures and falsifiable predictions across neuroscience, psychology, and physics, including neural criticality, perceptual bistability, trauma-related coherence collapse, and cosmological scale invariance. The resulting framework integrates phenomenology, physics, and information theory while remaining empirically grounded.