Primary Vector of Differentiation (PVD): A Conceptual Pre-Stage in the HIEEI–PDZ Framework

This conceptual note introduces the notion of Primary Vector of Differentiation (PVD) as a minimal logical precondition for the emergence of directionality prior to form, matter, or energy. PVD is not proposed as a physical entity, force, or mechanism, but as a conceptual boundary condition enabling the transition from maximal indeterminacy to structured regimes. The work employs a projection-based analogy to illustrate how distinction may persist even when form becomes indistinguishable at lower dimensions of observation. Within the broader framework of HIEEI (Hypothesis of Interface Evolution of Energy and Intelligence), PVD serves as the pre-stage linking regimes of weak interaction and non-retention (WARP-Z) to Potential Differential Zones (PDZ), where complexity and retention become possible. The model remains compatible with both self-assembly scenarios and interpretations involving external intelligence, without asserting or excluding either. This publication is intended as a conceptual clarification completing the logical architecture of the HIEEI–PDZ framework.