This manuscript is current in Official Peer Review. Not final version.Copyright©2026 Alex De Giuseppe.All rights reserved. This work is protected by copyright. Any form of plagiarism, unauthorized reproduction, or misappropriation of ideas, mathematically results, or text without proper citation constitutes a violation of academic and intellectual property standards and common laws. No commercial use, adaptation, or derivative works are permitted without explicit written permission from the author. For correspondence, citations, collaboration inquiries, or feedback please contact:degiuseppealex@gmail.com The hash files that determine ownership have been created Worldline Correlations Across Scales: Emergent Entanglement and Reflection as Evidence of Alternative Histories We present a unified framework that connects microscopic quantum entanglement, macroscopic correlated phenomena, and the physics of reflection to a single principle: the intersection of alternative worldlines constrained by geometric, material, and informational conditions (Nima's matrioska layers, ∆C⇄∆M⇄∆L). At the microscopic level, these constraints generate operationally detectable entanglement, reproducing interference and superposition effects without invoking faster-than-light signaling. By constructing admissible configuration spaces and computing non-factorizability measures (mutual information, logarithmic negativity in Gaussian realizations), we show how macroscopic systems can manifest entanglement-like correlations, consistent with the operational De Giuseppe theorem. At the macroscopic and optical level, we analyze reflection phenomena across mirrors, glass, and water surfaces. Classical interpretations of reflection via local re-emission from electrons cannot account for the preservation of coherence and phase observed in single-photon experiments. The “smoking gun” emerges in the Fresnel coefficients and correlated phase measurements: reflected photons behave as if selected from an alternative, pre-existing worldline that intersects with the incoming trajectory, perfectly preserving information without violating causality or no-signaling. This framework unifies interference, entanglement, and reflection as consequences of geometric intersection constraints in worldline space, providing a coherent explanation for phenomena traditionally attributed to probabilistic or purely wave-based interpretations. Experiments with single photons, entangled pairs, and phase-preserving reflections already contain the empirical signatures: the reflected light is not a simple local re-emission but the projection of a correlated worldline, making this the first direct operational evidence of worldline-mediated correlations across scales. In conclusion, both microscopic and macroscopic correlations, including the phase-preserving reflection of photons, can be interpreted as manifestations of intersecting alternative worldlines constrained by the matrioska structure. This offers a consistent ontological interpretation of quantum and relativistic phenomena, bridging scales from single-photon experiments to macroscopic entanglement without introducing extra entities or violating fundamental physical laws.