INTRODUCTION TO THE NEW OLD COSMOLOGY: BACK TO NORMAL (SCIENCE AND COSMOS)

For half a century, cosmology has relied on two invisible ingredients to explain the universe: dark matter, a substance that has never been detected despite decades of experimental search, and dark energy, a repulsive force whose physical nature remains entirely unknown. Together, they are said to constitute ninety-five percent of the cosmos. The remaining five percent — ordinary atoms, light, everything we have ever touched or measured — is treated as a minor addendum to a universe made mostly of darkness.This textbook presents a different cosmology. It is not speculative. It does not invent new particles or new forces. It begins with a single observation: the 1967 assumption that the cosmological constant and the quantum vacuum energy are the same thing was never proved. It was simply adopted — and from that untested identification arose the largest quantitative failure in the history of physics, a discrepancy of 120 orders of magnitude.Remove the assumption, and the crisis dissolves. The vacuum energy — whose existence is experimentally confirmed through the Casimir effect — gravitates locally, inside galaxies and clusters, producing the effects we attributed to dark matter. The cosmological constant governs geometry, not energy. What we call expansion is the passive relaxation of a deformed spacetime membrane toward its flat ground state. Singularities are replaced by finite-density vacuum cores. The cosmic web is not a frozen accident of random initial conditions but the unique fixed point of a self-consistent cycle, determined by a single coupling constant derived from nuclear physics.The result is a universe that is simpler, more coherent, and more deeply connected than the one we thought we lived in — a self-consistent four-dimensional structure held together not by invisible substances but by the elastic geometry of spacetime and the incompressible memory of the quantum vacuum.This is not a revolution. It is a return to normal physics: energy is mass, mass gravitates, and the vacuum is not exempt.Keywords: cosmology, quantum vacuum, general relativity, dark matter alternative, dark energy, Block Universe, cosmic web, structural cosmology Read more