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model
Surplus Capture Ladder
A model for how raw surplus becomes taxable, storable, and politically controllable through successive layers of capture.
Surplus is only power when it can be captured
Many settings identify fertile land or profitable trade, then jump straight to wealth and state power. The ladder model asks how surplus moves from production into durable control.
Each step adds friction, but also converts diffuse output into something more governable.
| Axis | Question | Signal |
|---|---|---|
| Production | Where does surplus first emerge? | High-yield grain, mineral belts, dense fisheries, craft clusters |
| Aggregation | How is scattered output concentrated? | Market towns, convoy points, warehouse districts, tribute routes |
| Storage | Where is time converted into resilience? | Granaries, depots, harbor vaults, reserve herds |
| Assessment | How does authority measure and claim it? | Tax ledgers, quotas, censuses, toll schedules |
| Deployment | How is captured surplus turned into force or legitimacy? | Soldiers, public works, subsidies, patronage, temple redistribution |
Failure mode
If a world cannot explain where the ladder breaks, its crises stay abstract. Shortages, revolt, and brittle authority become far more legible when one step in the capture chain fails.
The most important question is usually not whether surplus exists, but whether it survives the transition from one rung to the next. Grain can rot before storage, taxes can become illegible before assessment, and captured value can disappear into elite leakage before it turns into force or public order.
Relation Map
Capture-ladder adjacencies
Resource Flow Loop
Explains how surplus keeps moving before it becomes capturable power.
Civilization Pressure MapShows how captured surplus funds expansion but also raises administrative strain.
Mountain Basin CivilizationDemonstrates a setting where storage and pass control become central to surplus capture.
Transfer value
The reusable lesson is that wealth becomes politically meaningful only through a sequence of capture steps. Use the ladder to diagnose where prosperity stays diffuse, where authority becomes sticky, and where a regime's apparent abundance is actually leaking away before it can be governed.