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ΛCDM vs IE

A concise, scientific comparison of assumptions, equations and predictions.

Core assumptions

  • ΛCDM: Λ constant, GR, cold dark matter; expansion from Λ + matter.
  • IE: Expansion & time emerge from energy iterations; no inflaton.

Dynamics

  • ΛCDM: Friedmann equations with Λ.
  • IE: Iterative energy flow driving transient acceleration.

Observational handles

  • SN Ia (distance modulus μ(z))
  • BAO scales
  • CMB consistency relations

Qualitative expectations

  • ΛCDM: late-time eternal acceleration (if Λ>0).
  • IE: acceleration is transient; effective dark energy decays.
Placeholder figure: μ(z) comparison (Pantheon+). Put your plot as /assets/figs/lcdm_vs_ie_mu.png.

See also: Implications · MCMC validation