Why Gravitation Cannot Be Shielded: A Field-Mechanical Explanation within the Framework of the Universal Quantum Foam Hypothesis (UQSH)

This preprint examines why gravitation, unlike other physical interactions, cannot be shielded. Within the framework of the Universal Quantum Foam Hypothesis (UQSH), gravitation is interpreted not as a transmitted force but as the persistent field geometry associated with bound organization. In this view, shielding would require a local relaxation of this geometry and would therefore imply the structural dissolution of stable organization itself. The non-shieldability of gravitation thus emerges not as a technical limitation, but as a necessary consequence of a unified field ontology. The paper provides a field-mechanical interpretation of known gravitational properties and clarifies which theoretical degrees of freedom remain open without violating established physical principles.