The Coherence Limit: Reframing the Speed of Light as a Localization Boundary Abstract

Le résumé fourni par la source

This paper proposes a reinterpretation of the speed of light as a fundamental coherence and localization boundary rather than merely a maximum velocity. Under this framework, c represents the upper limit at which spacetime can consistently maintain localized, classical trajectories for physical systems. As velocities approach c, relativistic effects reflect an increasing strain on spacetime’s capacity to assign coherent spatiotemporal coordinates, culminating at c in the loss of proper time and meaningful localization. Superluminal motion is reframed not as time reversal or causality violation, but as a breakdown of spacetime description itself. Exceeding c corresponds to delocalization rather than backward time evolution, distinguishing this limit from quantum mechanical uncertainty and suggesting an ontological boundary of emergent spacetime. This perspective naturally aligns with approaches in quantum gravity and quantum information theory in which spacetime emerges from deeper relational or informational structures, with Lorentz invariance preserved as a consequence of an invariant coherence limit. Tachyonic instabilities are reinterpreted as mathematical indicators of localization failure rather than physical faster-than-light particles. The framework offers a unified conceptual explanation for causality, relativistic time dilation, and the absence of superluminal entities, positioning the speed of light as a fundamental constraint on spacetime coherence itself.

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