Abstract

In the quest to understand our universe, we find ourselves armed with two powerful yet seemingly incompatible frameworks: quantum mechanics and classical physics. Light, serving as our universal messenger, bridges our observations from the smallest quantum scales to the largest cosmic structures. This paper proposes a conceptual framework for understanding quantum-classical transitions through the lens of elastic information preservation. To illustrate these transitions across scales, consider a single photon in the quantum realm. From any given reference frame, its temporal and spatial properties exhibit quantum uncertainty. As we scale up to a beam of light, these quantum uncertainties resolve into classical trajectories we can measure with precision relative to our frame of reference. Yet in all reference frames, the speed of light remains constant - suggesting fundamental principles about how nature preserves information and temporal relationships while respecting relativistic constraints.