BU64 Turiya, Source-Position Continuity, and the Failure of Spacetime Semantics under B_U

BU64 develops a plain, non-mystified account of Turiya and source-position continuity under the $B_U$ framework. The paper begins by separating three layers that are often confused: cinematic narrative, the Upanishadic concept of Turiya, and direct lived experience. The cinematic layer may use images of nonlinear time or higher-dimensional space, but it remains a projection-level metaphor. The Upanishadic layer identifies Turiya as the “fourth,” beyond waking, dreaming, and deep sleep. The experiential layer is treated more simply: under low external disturbance, long-duration concentration, and sustained alignment between action and consciousness, awareness may remain bright and continuous even while ordinary…