Morten Magnusson · Symbiose Research, Sandnes, Norway · ORCID: 0009-0002-4860-5095 · April 2026 · CC-BY-4.0
What is Energy-Flow Cosmology?
The standard picture of the universe says 95% of it is made of two invisible ingredients — dark matter (the glue that holds galaxies together) and dark energy (the pressure that makes space expand faster and faster). Neither has ever been detected in a laboratory. The 5% we can actually measure — stars, gas, planets, people — is the only part nobody argues about.
EFC proposes a simpler idea: gravity adjusts itself where disorder (entropy) is still building up, and behaves like ordinary Einstein gravity everywhere else. One mechanism, two numbers. No invisible particles required.
The test: Can this one rule reproduce what we see — spinning galaxies, the cosmic microwave background, the accelerating expansion, galaxy cluster collisions — without those two invisible ingredients? Across 103 active probes (121 total, 18 in pipeline), EFC has survived 93. Ten probes have been falsified — showing that the framework is genuinely testable. It does not yet outperform the standard model — the margins are too small to call a winner — and the decisive experiments are pre-registered in the Roadmap.
Status: Global verdict OPEN 93/103 survived 10 falsified · 18 in pipeline
| Source | αL2 | Significance | Status |
|---|---|---|---|
| DOI 31332730 (LOO, N2a, 7 fσ8 probes) | −1.00 ± 0.46 | 2.20σ | Published · LOO 7/7 |
Sealed freeze v1 (2026-02-18, SHA 7a850cfa) |
−0.689 | — | Sealed · pre-data |
Sealed freeze v2 (2026-02-21, SHA dbccda15) |
−0.702 | — | Sealed · pre-data |
| Autonomous MCMC (emcee, broad priors, DESI DR2) | −0.141 ± 0.208 | 0.68σ | Degeneracy · α–Ωm |
Interpretation (updated, 32037990): The growth-suppression signal (lower fσ8 than ΛCDM) is real and reproducible (LOO 7/7). What has changed is the interpretation of the channel that produces it. Two channels can cause the same fσ8 suppression: (a) the background coupling α in E2(z), and (b) the perturbation-sector μ < 1 from stiffness response R(k,z). With DESI DR2 data, α collapsed from 2.2σ to 0.7σ — the background channel is weak. But μ < 1 survives as a structurally robust prediction (100% of parameter space). The sealed fσ8(z=0.7) = 0.430 prediction (32013156) is channel-independent and remains intact. Euclid DR1 tomographic cosmic shear is now the decisive test.
The 60-second pitch above compresses EFC into "gravity adjusts itself where entropy is still rising." That's the observable signature. But the ontology underneath is fundamentally different from ΛCDM, and the signature is a consequence, not the whole story. Without this second layer the pitch reads like a parameter tweak. It isn't.
| Question | Standard Model (ΛCDM) | Energy-Flow Cosmology (EFC) |
|---|---|---|
| What is primary? | Spacetime is a fixed stage. Matter, dark matter, and dark energy are ingredients populating that stage. | Energy and entropy are primary. Spacetime, matter-like structure, and the effective gravitational response emerge from energy flowing along entropy gradients. |
| What is gravity? | The curvature of spacetime caused by stress-energy (Einstein 1915). | The response of a discrete entropic substrate ("Grid") to entropy gradients. Einstein gravity is the saturated limit. |
| What is entropy? | A statistical consequence of microstates. Derivative. | A primary field. The thing whose gradients the universe actually follows. |
| What is time? | A primary coordinate in the metric. | Secondary. An index over irreversible Grid configuration transitions (Axiom 0). "Now" is where entropy production is currently happening. |
| What is "dark matter"? | A particle species yet to be detected in a laboratory (~27% of the universe). | Not a particle. The "missing" gravity is entropy-driven, not substance-driven. EFC does not require any new particle — only a different accounting of what the observed gravity is responding to. |
| What is "dark energy"? | A cosmological constant Λ — a number inserted into the action (~68% of the universe). | Emergent. Late-time acceleration is a regime transition in the same mechanism that gives galactic rotation curves, not a separate substance or a hand-tuned constant. |
| How many scales? | One physics everywhere; dark ingredients cover the gaps. | Four regimes (L0–L3) where the dominant mechanism shifts. A single action contains all four as limits of the same equation. |
| Measurement | The same rulers apply at every scale. | Rulers must match the regime (Regime-Consistent Measurement Principle, RCMP). Some "anomalies" are artefacts of measuring cross-regime phenomena with tools calibrated for the wrong regime. |
| How many free parameters? | Six baseline cosmological + dark matter + dark energy + per-galaxy halo parameters for rotation curves. | Six baseline cosmological + two EFC parameters (K⊂0, m²). Zero per-galaxy halo parameters. |
The deepest difference is not the numbers. It is the primitives. ΛCDM treats dark matter and dark energy as things that exist and need to be detected. EFC treats them as symptoms of how we currently measure — the question shifts from "where is the dark matter?" to "are we measuring the same quantity across regimes where the same quantity even makes sense?" The universe EFC describes is one where energy and entropy are the fundamental bookkeeping, and spacetime, gravity, and "time" itself are derived quantities that appear when you coarse-grain the Grid far enough.
Same observations. Different picture of what the universe is made of. Fewer primitives, not more.
For the full formal development of the ontology, see the White Paper (especially Part 2 "Field Equations and Observable Mapping" and Part 4 "Regime Susceptibility and Cross-Scale Mapping"), the Relativistic Action, and the ΛCDM as a Special Case consolidation paper.
Gravity is Einstein gravity. The universe is 5% ordinary matter, 27% dark matter (invisible, never detected in a lab), and 68% dark energy (a constant pressure filling all of space).
Gravity adjusts itself where entropy (disorder) is still rising, and behaves like ordinary Einstein gravity everywhere else. No invisible particles, no cosmological constant added by hand.
Claim discipline is the whole point of the validation ledger. EFC claims the following and nothing more:
| EFC claims | EFC does NOT claim |
|---|---|
| The standard model needs two invisible ingredients that have never been detected in a laboratory. | The standard model is wrong. |
| There exists a simpler alternative (one rule, two numbers) that current data cannot rule out. | EFC is proven correct. |
| Of 103 active probes, EFC survives 93 (10 falsified, 18 in pipeline). | EFC outperforms the standard model — the current margins are sub-statistical. |
| A specific set of kill criteria is frozen before the next generation of surveys reports. | Dark matter is "disproven" — particulate candidates remain viable; EFC only says they are not required. |
| ΛCDM is contained as a limiting case (three independent recovery conditions). | Full cosmological validation is complete — that requires full MCMC posteriors (≥ 16 GB RAM) not yet run. |
A theory that can't be killed isn't science. EFC has pre-registered kill criteria at two levels: Stage-IV observational kills (KC1–KC5, see Roadmap) and structural kills from the perturbation-sector analysis (32037990). Ordered by observational robustness:
Note on hierarchy (April 2026): The earlier formulation emphasised η ≈ 1.10 as a point prediction. Recent structural analysis (32037990) showed that η at a specific value is fragile under parameter variation (0% robustness at ±20%), while μ < 1 is structurally robust (100%). The kill-criterion hierarchy above reflects this: observable quantities (fσ8, Σeff, EG) come first; structural signatures (μ < 1) second; fragile point predictions (η at a specific numerical value) are no longer central.
See the Roadmap for the full list of kill criteria and which surveys will decide each one.
Pipeline status (April 2026): The Euclid DR1 pre-registration pipeline is complete
(DOI 31990053).
A custom efc_logistic gravity model in the hi_class Boltzmann solver produces
full Cℓ and P(k) predictions calibrated against ΛCDM. Benchmark prediction
(SHA-256 sealed): σ8 +1.2%, lensing −6%, EG −4%.
Awaiting Euclid DR1 data release (21 October 2026).
| If you want… | Go here |
|---|---|
| The 118-test validation status | Ledger — every test, its outcome, and its epistemic tier. |
| The four-part canonical write-up | White Paper — recovery conditions, field equations, falsification protocol, regime susceptibility. |
| The pre-registered kill criteria | Roadmap — one row per survey, one kill criterion each, all frozen. |
| The full revision history | Changelog — every structural and empirical update since inception. |
| The code, data, and reproducers | github.com/supertedai/EFC — 154 AI-friendly paper packages, 121 tests (103 active, 93 survived, 10 falsified, 18 pipeline), full reproducible pipelines. |
| The single-reference consolidation | ΛCDM as a Special Case of Energy-Flow Cosmology (DOI 31943361) — 14 months and 158 papers in one reference. |
© 2026 Energy-Flow Cosmology Initiative · Elevator Pitch v1.0 (April 2026) · CC-BY-4.0