Causal Monolinearity Expectation (CME): A Structural Boundary Instrument

This document is a closed, descriptive structural boundary instrument within the Irwin Canonical Corpus. It does not propose theory, explanation, evidence, or application. It does not resolve disputes, instruct action, or assert interpretive authority. Its sole function is to identify and constrain a recurring structural expectation—the expectation that outcomes must arise from a single, dominant cause—that produces interpretive distortion when imposed upon systems whose behaviour emerges through multifactor interaction and feedback. This instrument is non-resolutive by design.