This work presents the Hoffman Decoupling Model, a conceptual cosmological hypothesis in which dark matter arises as a relic component from early-universe decoupling processes. The model assumes that different matter and energy components possessed different coupling strengths to fundamental interactions during the early expansion phase. Strongly coupled components remained in thermal equilibrium and underwent intensive energy exchange, while weakly coupled components decoupled early from the thermal bath. These weakly interacting components retained their mass density but did not participate in electromagnetic processes, rendering them observationally dark. Dark matter is interpreted not as an exotic new substance, but as a physical remnant of incomplete interaction in the early universe.