Hysteresis

A system property where the current state depends not just on current inputs but on the path taken to get there—the system's history leaves a residue. Magnetization, economic recessions, trust in relationships, and habitat destruction all exhibit hysteresis: the path up is different from the path down. The practical implication: damage is easier to inflict than to repair, and recovery requires more effort than prevention. This makes prevention far more cost-effective than remediation.

When to use it

When dealing with complex, interconnected problems; when interventions keep failing; when small changes produce disproportionate effects; when predicting system behavior.

How it can help

Enables seeing the structural patterns beneath surface-level events. Helps leaders understand why interventions often fail and where to find genuine leverage for change.