Rosenfeld's law¶
Rosenfeld's law is an axiom relating physics to economics, that states that the amount of energy required to produce one dollar of GDP has decreased by about one percent per year since 1845.
Core Idea¶
Rosenfeld's law is treated here as the recurring crossdomainmodelsstructuresrepresentations identity summarized by this source-grounded definition: Rosenfeld's law is an axiom relating physics to economics, that states that the amount of energy required to produce one dollar of GDP has decreased by about one percent per year since 1845. Rosenfeld's law is an axiom relating physics to economics, that states that the amount of energy required to produce one dollar of GDP has decreased by about one percent per year since 1845.
Scope of Application¶
-
Documented setting. Rosenfeld's law is an axiom relating physics to economics, that states that the amount of energy required to produce one dollar of GDP has decreased by about one percent per year.
-
Documented setting. From 1845 to the present, the amount of energy required to produce the same amount of gross national product has steadily decreased at the rate of about 1 percent per year.
-
Documented setting. This is not quite as spectacular as Moore's Law of integrated circuits, but it has been tested over a longer period of time.
-
Documented setting. One percent per year yields a factor of 2.7 when compounded over 100 years.
-
Documented setting. It took 56 BTUs (59,000 joules) of energy consumption to produce one (1992) dollar of GDP in 1845.
Clarity¶
A clear use of Rosenfeld's law names the carrier, the operative relation, and the conditions under which the source treats the identity as present. The minimal definition is Rosenfeld's law is an axiom relating physics to economics, that states that the amount of energy required to produce one dollar of GDP has decreased by about one percent per year since 1845.
Manages Complexity¶
Rosenfeld's law compresses multiple crossdomainmodelsstructuresrepresentations details into a stable diagnostic relation. The source shows both the central mechanism—from 1845 to the present, the amount of energy required to produce the same amount of gross national product has steadily decreased at the rate of about 1 percent per year.—and the practical consequence—by 1998, the same dollar required only 12.5 BTUs (13,200 joules).
Abstract Reasoning¶
- Type the carrier. Identify the crossdomainmodelsstructuresrepresentations entities to which the claim applies.
- State the relation. Use the source-grounded identity: Rosenfeld's law is an axiom relating physics to economics, that states that the amount of energy required to produce one dollar of GDP has decreased by about one percent per year since 1845.
- Check operation and conditions. This is not quite as spectacular as Moore's Law of integrated circuits, but it has been tested over a longer period of time.
- Demand recognition evidence.
Knowledge Transfer¶
Within the home domain. Knowledge about Rosenfeld's law transfers literally when a new case preserves the same carrier type, relation, and recognition test. Rosenfeld's law is an axiom relating physics to economics, that states that the amount of energy required to produce one dollar of GDP has decreased by about one percent per year since 1845. From 1845 to the present, the amount of energy required to produce the same amount of gross national product has steadily decreased at the rate of about 1 percent per year. Beyond the home domain. No canonical parent is asserted for Rosenfeld's law.
Relationships to Other Abstractions¶
Current abstraction Rosenfeld's law Domain-specific
Parents (1) — more general patterns this builds on
-
Rosenfeld's law is a kind of Axiom Prime
Rosenfeld's law is an asserted empirical axiom about declining energy intensity per unit of GDP.
Hierarchy path (1) — routes to 1 parentless root
- Rosenfeld's law → Axiom → Epistemic Mode Of A Proposition
Neighborhood in Abstraction Space¶
Rosenfeld's law sits in a sparse region of the domain-specific corpus (88th percentile for distinctiveness): few abstractions share its structure, so a faithful description tends to retrieve it precisely.
Family — Classical & Trade Economic Theory (20 abstractions)
Nearest neighbors
- Elasticity of intertemporal substitution — 0.82
- Wicksell's theory of capital — 0.81
- Law of increasing costs — 0.80
- Integral part — 0.80
- Merton's portfolio problem — 0.80
Computed from structural-signature embeddings · 2026-10-08