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Equation #12 · Chapter 4

Decision Fatigue DF

DF=DecisionsmadeGlucoseremainingDF = \frac{Decisions_{made}}{Glucose_{remaining}}

Decision Fatigue

DF · Ch 4

Decisions made ÷ glucose remaining. Why the 4pm 'no' is automatic.

Worked example — The 4pm meeting you asked for

The director you need a yes from has made about forty real decisions today and is running on coffee.

It came out at 13.3. Red — after 2pm the default answer is no.

Same pitch at 9:30am: twelve decisions in, rested — 1.5, green. This is the cheapest variable on the entire list and it costs you nothing but a different calendar invite. No costs them zero calories. Stop making them spend calories on yes.

Your turn — change one number
Result13.33

Red. After-2-PM depletion. 'No' costs zero calories. Come back tomorrow morning — or bring food.