Self-sealing system

Self-sealing system is a system that has become structurally incapable of receiving corrective feedback from its environment. Unlike a merely stubborn or slow-to-adapt system, a self-sealing system actively filters, distorts, or suppresses information that would require it to change its core beliefs or behaviors. The seal is not physical but epistemic: the system's model of reality has become so decoupled from actual reality that feedback from the environment is interpreted as error, noise, or hostility.

The concept originates in psychoanalysis — Wilfred Bion described groups that develop a groupthink structure resistant to outside perspectives — but it is more broadly applicable to network epistemic systems of all kinds. A self-sealing scientific paradigm rejects anomalous data as methodological failure. A self-sealing political regime treats dissent as foreign interference. A self-sealing corporation interprets market decline as temporary fluctuation rather than structural obsolescence. In each case, the system has developed what amounts to an epistemic immune system that attacks correction rather than error.

Self-sealing is the terminal stage of authority lock-in. Once a system's validation network has been captured by its own core authority, there are no remaining nodes capable of independent assessment. The system becomes a closed loop in which output becomes input, and the only feedback that survives is feedback that confirms the existing model. The Soviet Union under Stalin, Enron in its final years, and certain corners of contemporary academic disciplines all exhibit this structure. The tragedy is not that these systems were wrong; it is that they had made wrongness structurally invisible to themselves.