Principlev1PR-1178
Calculate the true cost of activities by including attention
Calculate the true cost of activities by including attention residue and transition overhead, not just the activity's nominal duration.
Why This Is a Principle
Derives from Task-switching generates attention residue that persists… (task-switching generates attention residue) and Task switching between different types of cognitive work… (switching imposes time cost). The principle prescribes a specific accounting method for energy costs that includes hidden overhead—transforming how you evaluate the 'cost' of accepting an obligation or interruption.