On the Limits of the Curvature Radius in Central Projection — The Cases R → ∞ and R → 0

central projection framework established in prior papers [1]–[3]. Both limits R → ∞ and R → 0 are geometrically regular. For R → 0, a structural tension arises between the geodesic deviation upper bound and local curvature. A nested structure of subjective spaces (Proposition 4.1) is shown to be constructible from existing geometric degrees of freedom, resolving this tension within the framework. No physical claims are made.