(RealClock) Quantum Mechanics

In standard quantum mechanics, spin is introduced as an intrinsic form of angular momentum — a fundamental internal degree of freedom, postulated rather than derived. I found this answer formally correct, but conceptually incomplete. What is spin, physically? What must exist in nature for such a degree of freedom to be inevitable rather than assumed? Pursuing this question led me to reconsider the foundations of quantum mechanics. The result was not merely a reinterpretation of spin, but a relational transport framework in which spin emerges as an internal clock structure — and in which relativistic, gauge, and gravitational sectors appear as consequences of a single closure principle. The theory presented here, RealClock quantum mechanics, is fully falsifiable. If its relational predictions fail, it must be discarded. If they hold, then spin is not a postulate, but a structural necessity.