Perspective–Dual Cosmology (PDK): A Structural Hypothesis on the Limits of Physical Description

This work does not propose a new cosmological model or a novel dynamical framework. Instead, it formulates an axiomatic structural hypothesis about the limits of physical description in fundamental physics. The Perspective–Dual Cosmology (PDK) investigates persistent tensions in modern theoretical physics—such as the status of dark components in cosmology, the role of time and dynamics, and the fragmentation of quantum gravity programs—by treating them as structural features rather than provisional shortcomings of existing theories. PDK is formulated at the level of foundations of physics. It introduces a minimal set of axioms describing physical theories as necessarily projective, perspective-dependent descriptions of a fundamentally dual structure. Within this framework, physical laws are interpreted as local consistency conditions of projections, not as global, observer-independent truths. The work is conceptually motivated, falsifiable at the structural level, and explicitly non-competitive with established empirical models such as ΛCDM. It is intended for readers interested in the foundations of physics, philosophy of cosmology, and the structural interpretation of effective theories.