---
name: lifestage-value-curve
description: "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."
---

# 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.

## 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.

```
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)](examples/charles-darwin-career-stages-1809-1882.md)*

## 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](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

---
*Part of **deciqAI Knowledge Skills** — 225 open-source thinking skills that make rigor executable for AI agents. The same skills power every deciqAI agent, which runs them autonomously to operate your company. **See it run → https://www.deciqai.com/s/lifestage-value-curve** · Built by deciqAI · github.com/deciqAI · Contributions welcome.*