Principlev1PR-114
Block your measured peak attention hours on your calendar…
Block your measured peak attention hours on your calendar as recurring non-negotiable focus time and assign your most cognitively demanding tasks to those blocks, because cognitive performance varies 7-40% across the day and high-stakes decisions made during depletion are measurably worse.
Why This Is a Principle
Derives from Ultradian and Circadian Cognitive Rhythms (circadian and ultradian cycles), Directed Attention as Depletable Resource (finite executive function), and Conscious Processing Is Metabolically Expensive (deliberation is metabolically expensive). This is the core protection principle that operationalizes timing-based resource allocation for scarce cognitive capacity.