Lifestage Value Curve

Activate when: someone asks 'what should I focus on at my age,' 'I feel like I'm wasting my best years,' 'how do I plan my career long-term,' 'what does my 40s/50s demand,' or a person is clearly investing for the wrong life stage (Heroic Age execution in the Golden Age, or Silver Age coasting in the Heroic Age). Do NOT activate when: the problem is domain skill acquisition unrelated to life-stage strategy; chronological and developmental age diverge significantly and more context is needed first.

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.

Coaching Novices (Adaptive Front Door)

Engine mode: user has a concrete case → run The Process directly. Coach mode: user is unfamiliar → guide step by step.

In Coach mode, respond one step at a time. Each [WAIT] is a hard stop — output only that step's question, then stop.

1. One-line what-it-is: "Seven career-life stages, each demanding a different investment. Peak value contribution is usually the 40s — when experience, network, and judgment finally compound."
2. Check fit: "How old are you, and what stage are you actually in based on what you're building, risking, or protecting?"
3. Elicit the real case: "What are you investing most heavily in right now — and for whose benefit?"

[WAIT — do not advance until user responds]

4. Map and question: Map their pattern to the most honest stage; ask if it matches what that stage actually demands.

[WAIT — do not advance until user responds]

5. Close with the unlock: "If you invested for [their stage] over the next two years, what would unlock in the next stage that isn't on track now?"

[WAIT — do not advance until user responds]

The Process

Output artifact: Lifestage Investment Audit + Next-Stage Unlock Plan

1. Identify current stage by age AND behavioral indicators.

   Stage	Age	Primary Demand
   蛮荒时代 Savage Age	10-20	Direction and first exposure
   启蒙时代 Enlightenment Age	20-30	Deep skill acquisition, domain commitment
   英雄时代 Heroic Age	30-40	Track record building, maximum growth investment
   黄金时代 Golden Age	40-50	Synthesis, leverage, high-stakes contribution
   白银时代 Silver Age	50-60	Mentoring, strategic selectivity
   青铜时代 Bronze Age	60-70	Selective high-leverage contributions
   第二蛮荒时代 Second Savage Age	70-80	Active choice: regeneration or stagnation

   Gate: write your stage AND behavioral evidence (not just age).

2. Name stage demands. 3 investments: what to build, risk, and protect. Gate: specific to your context.

3. Audit investment patterns. Name one stage-mismatched pattern and explain why.

4. Identify the ONE highest-leverage investment. Gate: specific, time-bounded, consequential.

5. Project forward. Name the capability/relationship/position that must be built now to unlock the next stage. Gate: concrete, falsifiable condition.

6. Stop-rule: If your pattern would look identical at 30 or 50, return to Step 3.

text

Current stage: [name] | Age: [N] | Behavioral evidence: [...]
Build: [...] | Risk: [...] | Protect: [...]
Stage-mismatched pattern: [...] → from [earlier/later stage]
Highest-leverage investment: [...] | Timeline: [...]
Next-stage unlock: "By [next stage] I will have [...]." | If not: [foreclosed]

→ Method in Action: Charles Darwin's Career Stages (1809-1882)

Lifestage Packs

Stage	Founders	Knowledge Workers
英雄时代 30-40	Take outsized bets; build the track record that funds future credibility	Lead projects; build reputation through output volume AND quality
黄金时代 40-50	Leverage judgment and network; high-concentration positions where synthesis is unique	Mentor actively; take advisory roles; leverage of synthesis is highest here
白银时代 50-60	Back founders with capital, network, and pattern recognition	Institutional knowledge stewardship; write the book, define the standard

Applying It Well

1. Age is a starting hypothesis — calibrate to behavioral reality, not birth certificate.
2. The Golden Age rewards leverage, not heroic effort. Return comes from judgment, not volume.
3. Under-investing in the Heroic Age is the most consequential error — conservative 30s produces a thin track record at 50, Heroic-to-Golden transition is the most treacherous.

→ Primary sources: references/sources.md

Common Rationalizations

[D] = designed upfront | [O] = observed in real use. [O] entries are more valuable.

Fake move	Reality
[D] "I'm in the Heroic Age so I just need to work harder."	Pure execution without deliberate learning is burnout, not Heroic Age development.
[D] "Synthesis is still far off — I'm not in my Golden Age yet."	Golden Age investment must begin in the late Heroic Age or the window is wasted.
[D] "I'm in the Silver Age — I've earned the right to rest."	Silver Age demands active mentoring and selective contribution; coasting produces stagnation.
[D] "I'll invest in the next stage when I get there."	Stage investments must begin one stage early; you cannot back-fill a Heroic Age track record.
[D] "My energy is still high — I don't need to shift to synthesis."	Golden Age leverage comes from synthesizing accumulated experience, not from energy.
[D] "Mentoring takes time away from my own work."	In the Silver Age, mentoring IS the high-leverage work.
→ Add [O] entries here after each real use — paste the actual failure pattern	What went wrong and why

Red Flags

• Same investment pattern for 10+ years with no deliberate recalibration
• Cannot name the specific capability you are building to unlock the next stage
• Applying "universal" career advice without stage-specific modification
• Current stage's demands feel exhausting rather than energizing — often a sign of stage mismatch

Verification

• Identified stage using BOTH age AND behavioral evidence
• Named the 3 stage demands (build, risk, protect) in my specific context
• Identified at least one stage-mismatched pattern
• Highest-leverage investment is specific, time-bounded, and stage-distinguishable
• Named the concrete next-stage unlock condition
• Checked whether investment pattern would look the same regardless of stage

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