Original PCS Residual / Constraint Domains Reclassified
Thermal, Flow, Chemical, Informational, and Structural remain original research domains; the current Earth empirical vector is R_T, R_C, R_S, and R_F.
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Early PCS work used thermal, flow, chemical, informational, and structural as residual / constraint research domains. They are no longer labeled as five validated Earth components.
The current Earth empirical implementation retains R_T, R_C, R_S, and R_F. The informational domain remains part of the broader PCS research program and is not included in the current Earth empirical vector. L(t) aggregation remains HYPOTHESIS / HOLD.