Returning to Physical Pictures: ZTD's Ontological Interpretation of Fundamental Physical Concepts

Mainstream quantum mechanics and quantum field theory have achieved unparalleled mathematical success, yet they have left numerous black boxes at the level of physical pictures: what a field is, where mass comes from, why electric charge has a sign, whether the wavefunction is physical reality or a probabilistic tool, where particle nature comes from, and why gravity is so weak and yet unquantizable. Within the framework of Marker Ontology (ZTD), based on three core concepts—the Discrete Asynchronous Poisson (DAP) network, nearest-neighbor propagation, and survivor selection—this paper provides a unified, natural, and intuitively comprehensible ontological picture for fundamental physical concepts such as matter, energy, mass, momentum, charge, field, light, gravity, spin, vacuum, quantum fluctuation, and antimatter. This paper further presents six mathematical skeletons (embedded in the corresponding physical concepts rather than arranged as a separate sequence): (1) energy as variance—energy is the statistical measure of the network's deviation from the ground state; (2) the algebraic origin of unitarity—the mode maintaining itself is equivalent to the evolution operator satisfying U†U = I; (3) the discrete algebraic root of the commutation relation—on a regular lattice, [X̂, p̂] = iℏ can be rigorously derived; (4) Hermiticity from measurement reality—the reality of measurement results requires observables to be Hermitian; (5) the algebraic cutoff of the uncertainty principle—the minimal primitive leads to a wavenumber cutoff, forming a double constraint together with the gravitational cutoff; (6) the two-state picture of the measurement problem—free state as random walk, measurement state as standing-wave reconstruction. This paper modifies no existing mathematical prediction, but provides a clear decisive experimental direction: the cascaded interference experiment. Keywords: Marker Ontology; DAP network; spatial primitive; constrained refreshment cluster; ontological picture; wave-particle duality; energy as variance; commutation relation; uncertainty principle; measurement problem; matter-antimatter asymmetry; nature of gravity; cascaded interference experiment