This work presents the first empirical-theoretical synthesis suggesting that the quantum vacuum behaves as a continuous medium with plasmatic and mechanical characteristics, rather than as an empty background. By re-analyzing Tonomura’s 1989 single-electron interference data under the formalism of QuarkBase Cosmology, it is shown that the same interference pattern can be quantitatively reproduced by a pressure-field model (Ψ-field) obeying Yukawa-type propagation with a finite screening length (λ ≈ 5 m).The study demonstrates that the introduction of a pressure-based etheric medium explains both the amplitude attenuation and the coherence decay observed experimentally—effects that standard quantum mechanics can only describe phenomenologically. Within this framework, decoherence is not a postulate but a measurable mechanical interaction between the detector and the etheric plasma, characterized by a rate (Γφ ≈ 80 s⁻¹).The results establish that:The vacuum exhibits a finite transparency length and behaves as a real transmission medium for pressure perturbations.The observed interference visibility depends on mechanical parameters such as the detector’s bulk modulus (K), revealing a coupling between matter and the underlying etheric field.The conventional “collapse” of the wavefunction emerges naturally as a dissipative pressure process, preserving locality and causality.This reinterpretation transforms a historically symbolic quantum experiment into direct evidence for a structured vacuum—a continuous quarkic plasma that unifies field dynamics, matter emergence, and energy transfer within a single mechanical substrate.Far from contradicting modern physics, this approach extends it: it preserves relativistic invariance while providing a tangible ontology for the quantum state itself.