Beyond ΛCDM: A Critical Tour of Cosmological Models and CCD Beyond ΛCDM: A Critical Tour of Cosmological Models What Has Failed, What Still Works, and Where Continuous Creation Dynamics (CCD) Fits In Thomas Riedel • December 2025 "We have no real understanding of the energy of empty space." — Steven Weinberg (1989) The Crisis in Modern Cosmology ΛCDM is phenomenologically successful but explanatorily thin. It fits an impressive range of observations, but it does so by postulating ingredients whose nature remains mysterious: dark matter, dark energy, and a cosmological constant of absurdly small but nonzero value. It describes the world in exquisite detail, but it rarely tells us why it should be this way. Among the questions ΛCDM does not really answer are: Why matter exis...
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