On the Ontological Nature of the Primal Medium: Field, Matter, and the Tare Principle

This paper presents a fundamental ontological clarification within the framework of Binary Field

Theory (BFT). It is argued that the Primal Field — the sole ontological foundation of the universe — is

not a massless abstraction, but a ubiquitous material medium with uniform background mass density.

The apparent "masslessness" of the vacuum is revealed to be a consequence of the Tare Principle: all

measuring instruments, being immersed in the same medium, are calibrated against the

medium-inclusive state, thereby rendering the background mass intrinsically unobservable. Matter, in

this view, is not a fundamental entity but the localized manifestation of the medium under strong-field

constraint (locking). Wave-particle duality is naturally explained as the transition between

unconstrained (wave) and constrained (particle) field propagation. The cosmological 95:5 virtual-real

ratio, the nature of dark energy and dark matter, and the origin of inertial mass are all shown to follow

from these premises.