Principlev1
Instrument systems with the minimum number of metrics that
Instrument systems with the minimum number of metrics that change behavior when they move, because observation itself consumes the cognitive resources needed to act on what you observe.
Why This Is a Principle
Grounded in attention being finite (Attention is a finite cognitive resource that must be), executive function depleting with use (Directed Attention as Depletable Resource), and information creating attention scarcity (Information and attention have an inverse relationship: a). The principle prescribes ruthless selectivity in what you monitor to preserve the resource needed to act on monitoring data.