Gravity Is Not a Peer Force

This foundational physics artifact argues that gravity is misclassified when treated as one more peer force alongside strong, electromagnetism, and weak. Working within the current Structural Flow physics foundation, the paper proceeds conditionally from the upstream result that density-held spacetime is the shared physical substrate. On that basis, it argues that gravity is better understood as the substrate-tier organizer of that substrate under accumulated persistence-bearing load rather than as a peer interaction-tier line. The artifact does not claim full derivation of general relativity, full mathematical closure, or full empirical closure. Its burden is narrower and structural: to identify gravity’s correct theoretical tier, distinguish that role from the interaction-tier three, and show the failure signature that appears when gravity is mislocated as a peer force.