The Chemical Primitive: A Structural Flow Perspective on Why Most Interactions Leave No Trace

This foundational bridge artifact in the chemistry lane of the Structural Flow library asks why some chemical interactions matter while most leave no lasting trace. Working from the minimal starting condition that Chance exists in the chemical domain, the paper treats repeated interaction as permitted but persistence as non-guaranteed. On that basis, it argues that entropy is best read here as memory erasure under repeated interaction, that boundaries emerge as the minimal response that protects retained structure, and that most boundary-mediated persistence attempts fail before they acquire forward authority. The artifact does not offer a mechanism-level chemistry theory and does not replace the already-closed cross-domain failure architecture of Structural Flow. Instead, it provides a chemistry-facing foundation: a structural starting condition, a grammar of boundary-mediated persistence, and a chemistry-local descriptor set for how non-participation appears at this resolution.