lifestage-value-curve
Lifestage Value Curve
Overview
Different life stages create different competitive advantages and demand different investments. The Lifestage Value Curve maps seven career-life stages from ages 10 to 80. The Golden Age (40-50) is the peak value-contribution window — not peak energy, but peak synthesis of experience, network, and judgment. Applying the wrong stage's strategy wastes each period's comparative advantage.
Use WITH [margin-of-safety] to buffer stage transitions (highest-risk periods). Use BEFORE [okr-goal-setting] to calibrate goal type. Complements [s-curve-technology-adoption] — your career follows an S-curve inside each stage.
When to Use
- A person in their 20s optimizes for stability when the Heroic Age demands aggressive skill acquisition
- A person in their 40s still does Heroic Age execution when the Golden Age demands synthesis and leverage
- A career transition feels disorienting because the old investment pattern no longer works
- A founder makes decisions appropriate for a 25-year-old but is actually 45
When NOT to use: as a rigid deterministic model; to say someone's window has passed; when the problem is domain skill; when chronological and developmental age diverge significantly.