The Limit Case of Production

Classical economics identifies three factors of production: Land (raw materials), Labor, and Capital (tools, machines, infrastructure). Adam Smith laid this out in 1776, and it’s held up remarkably well for 250 years.

But what happens when you push labor content toward zero?

This is the trajectory we’re on. Automation — in the broadest sense, the application of capital and energy to replace human effort — has been steadily reducing the labor content of goods for centuries. The trend is not slowing. It’s accelerating. (See: The Exponential Blind Spot)

At the limit, the labor content of any good approaches zero. What’s left?

• Raw materials — the physical stuff things are made of
• Capital — the machines, systems, and intelligence that transform raw materials into goods
• Energy — the thing that actually powers every transformation

And raw material extraction is itself just capital and energy applied to the earth. So at the true limit, the factors of production simplify to: Capital + Energy.

Money as Energy Proxy

If production at the limit is Capital + Energy, and capital is itself built from prior applications of energy, then the cost of any good converges toward its energy content.

This means money — whatever form it takes — is fundamentally a proxy for energy. A dollar is an abstraction over a quantity of energy applied to transformation. We just don’t think of it that way because the abstractions between “I paid $5” and “this required X kilowatt-hours to produce” are so many layers deep that the connection is invisible.

What if it weren’t invisible? If the price tag on every good reflected its energy content — say, denominated in kWh rather than dollars — would people make different choices? Would waste look different when it’s measured in energy rather than currency? This is speculative, but the reframing might have value: energy is physical, conserved, and measurable in ways that money (which can be created by fiat) is not.

The Energy Constraint

Here’s where the limit case analysis gets consequential. If labor goes to zero but energy remains finite, then:

• Production capacity is bounded by energy supply, not by workforce size
• The cost floor of any good is its energy content — you can’t make it cheaper than the energy required to transform the raw materials
• Whoever controls energy distribution controls the economy at a more fundamental level than whoever controls labor or capital

This is not a far-future abstraction. It’s already visible: global energy consumption tracks GDP growth. Countries with cheap, abundant energy have structural economic advantages. Energy costs are already the primary input cost for many heavy industries.

The Sustainability Imperative

The current global energy system runs predominantly on stored energy from millions of years ago — fossil fuels. The total stored quantity is large but finite, and the rate of consumption vastly exceeds the rate at which that energy was originally stored.

This creates a hard constraint on the limit case scenario. If we’re heading toward a world where production capacity is enormous and labor content is near zero, the only remaining bottleneck is energy. The promise of near-zero-labor production only delivers broad abundance if the energy supply is:

1. Abundant — enough to power production for the entire global population at high standards of living
2. Sustainable — not drawing down a finite reserve
3. Broadly distributed — not concentrated in a way that recreates the scarcity problem at a different level

The answer is not to deny developing nations access to energy-intensive lifestyles. It’s to make the energy supply sustainable enough that universal high consumption doesn’t destroy the system.

Solar, wind, nuclear, and eventually fusion all represent paths toward energy that is balanced — where the rate of capture meets or exceeds the rate of consumption. The economics of solar in particular are on their own exponential curve, with costs dropping at a rate that consistently surprises even optimistic projections.

Robert Miller’s Thermodynamic Insight

In the 2017 UBI Dialog, Robert Miller made an observation worth preserving: an economy is fundamentally a physical process — the application of energy to the transformation of raw materials into goods and services. It is bound by thermodynamics. This means you can, in principle, evaluate economic proposals the same way you’d evaluate claims about physical systems: does this violate conservation laws? Is this an “economic perpetual motion machine”?

This is a powerful analytical tool. Many popular economic narratives — on all political sides — implicitly assume you can create value from nothing, redistribute without trade-offs, or generate returns without energy input. Viewing the economy through a thermodynamic lens doesn’t tell you which policies are good, but it does tell you which ones are physically impossible.

The Post-Scarcity Question

If energy becomes abundant and sustainable, and labor content approaches zero, you’re looking at a production system that can generate material abundance limited only by raw materials and imagination. The economic question transforms:

• Old question: How do we produce enough?
• New question: How do we distribute what we produce?

This is the territory where the Desire/Demand Distinction becomes critical. In a world of abundant production, the constraint isn’t supply — it’s the mechanism by which people access that supply. The current mechanism is: contribute labor, receive income, purchase goods. When labor is no longer the bottleneck, that mechanism needs to evolve.

What it evolves into is one of the central questions of our time.

Energy Credits: Distributing the Real Currency

If money is a proxy for energy, and energy is the binding constraint on production, then there’s a provocative question: why distribute the proxy instead of the thing itself?

Consider a government that invests heavily in sustainable energy infrastructure — solar, wind, nuclear, eventually fusion — and then distributes energy credits directly to citizens. This is conceptually similar to UBI, but denominated in the actual fundamental currency of production rather than an abstraction of it.

The implications are interesting:

• It’s self-funding in a way that cash UBI isn’t. The government builds the infrastructure (a capital investment), the sun/wind/atoms provide the energy (an ongoing input that doesn’t deplete a treasury), and citizens receive credits against that production. The “funding” question transforms from “where does the money come from?” to “can we build enough generation capacity?” — which is an engineering problem, not a fiscal one.
• It makes the energy-money connection visible. When your monthly allocation is denominated in kWh rather than dollars, the relationship between energy and economic participation becomes tangible. Waste looks different when you’re spending energy rather than an abstract number.
• It creates a natural floor tied to physical reality. A cash UBI can be eroded by inflation because money can be created by fiat. Energy credits tied to actual generation capacity have a physical basis — you can’t inflate kWh.
• It aligns government incentives with energy abundance. A government distributing energy credits has a direct incentive to maximize sustainable generation capacity, because that’s how it delivers value to citizens. The more energy it can produce, the more it can distribute.

This is speculative, and the implementation details would be complex — energy isn’t perfectly fungible across all uses the way money is, and the infrastructure investment is massive. But as a direction it follows logically from the premise: if energy is the real currency, perhaps we should treat it that way.

Questions for the Reader

• What fraction of the cost of the goods you buy is energy vs. labor vs. materials? Has that ratio changed in your lifetime?
• If energy were free and unlimited tomorrow, what would change about the economy? What wouldn’t change?
• If you thought of your salary as “energy purchasing credits” rather than dollars, would you spend differently?