This work presents an exploratory, constraint-based hypothesis aimed at clarifying the structural principles that appear to underlie diverse physical phenomena. Rather than introducing new forces, particles, or speculative ontologies, the proposal examines whether widely observed limits in physics can be understood as consequences of a continuous interaction medium with finite local capacity. Within this framework, saturation enforces redistribution, oscillatory behavior introduces phase and coherence, self-consistent closure yields persistent structures identified with mass, non-closure corresponds to massless propagation, and sustained closure deforms admissible pathways in a manner effectively described as geometry and gravity. Irreversible loss of coherence establishes time and entropy, balance remains regional rather than global, and regeneration follows from the reoccupation of low-cost closure attractors after disruption. Established physical laws are retained as valid effective descriptions, reinterpreted as expressions of admissible behavior under constraint. The work is presented as a conceptual proposal rather than a completed theory, intended to support further formalization, critical examination, and potential falsification.