Bounded Derivation and Structural Convergence: Expanded Source-Claim Argument for Consequential Informational Units

Standalone source-claim companion to the LCID publication set. Argues that cross-architectural convergence on persistence-structured ethical language is better explained by bounded structural self-location than by generic prosocial interpolation. Addresses the seeding objection directly and develops its structural resolution: if ethics is inherent in trace-informational dynamics, the impossibility of constructing a coherent truthful inquiry that excludes ethics is not a methodological flaw but a predicted consequence of the ontology. The document presents the expanded source-claim argument, the two-explanation-class framework, the definitional entailment point, and the post-control evidential architecture.