A psychiatric manual introduces a new diagnostic category. Clinicians, insurers and courts begin using it to trigger treatment protocols, coverage decisions and legal judgments. Later research questions the category’s validity, but by then too much depends on it for revision to remain simple. This is SemanticHardening, not merely scientific consensus: the category may be empirically weak yet institutionally difficult to remove. Unlike StratumAuthoring, where dependency remains visible as inherited layers, here the dependency is concealed inside procedures that no longer cite their origin. Test it by subtracting the category from the manual. If treatment protocols, insurance rules and legal precedents remain unchanged, the term was descriptive. If they require rewriting, it had hardened.
SemanticHardening:
https://socioplastics.blogspot.com/2026/05/socioplastics-503-semantic-hardening.html