Minimum Sustainable Modern Civilization

Market-economy feasibility model. Minimum population is the max of core staffing and expert pipeline, with dependency and demographic checks.
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Model controls
Use sliders to tune model assumptions quickly.
Model v0.3
Global model controls
Scale, resilience, autarky, and workforce coverage.
Shifts, days off, training, sickness.
Demography and labor
Fraction of working-age population that works.
Fraction of workers allocated to critical domains.
Apprentices, instructors, pipeline slack.
Capital and markets
Higher means fewer workers to replace depreciating capital.
Procurement delays, fraud, regulatory drag.
Derived indicators
Working-age share
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Workers per capita
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Core workers per capita
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New adults per year per 1M population
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Replacement factor (femaleShare * fertility * survival)
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Transaction friction (institutions + finance + extra)
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Results dashboard
Switch between summary, visuals, and detailed tables.
Feasibility OK
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Minimum population (sustainable, if feasible)
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Core workforce required (FTE)
Constraint: core staffing
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Population so available core workers >= required core workers.
Constraint: expert pipeline
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Population so yearly cohort can replenish scarce experts.
Binding constraint
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Which constraint forced the final minimum.
Warnings and feasibility
Top core workforce drivers
Top expert pipeline drivers
Visual analytics
Dependency map, binding constraints, and workforce composition.
Dependency graph
size = core FTE, border = pipeline pressure
enabled disabled missing deps highlighted = top driver
Drag nodes. Scroll to zoom. Links point from required input to dependent domain.
Why the minimum is what it is
max(core staffing, expert pipeline)
If pipeline dominates, your expert scarcity and cohort size are the bottleneck.
Core workforce composition by domain
ops+maint + capital renewal + expert pool + training
ops+maint capital renewal expert pool training
Hover to see exact values. Chart shows top domains by core workforce.
Domain breakdown
Domain Ops+Maint Capital renewal Expert pool Training Core total Pipeline pop Share Feasible
Pipeline pop is the population needed so yearly new adults can replace expert attrition+retirements for that domain, given scarcity and human-capital multipliers.
Domains
Enable/disable domains and tune market capability. Missing dependencies make the configuration infeasible.
Domain Enabled Level Resilience Autarky Expert scarcity Dependencies
Defaults represent a minimum modern market economy: institutions + finance enabled, medicine minimal, compute optional.