Abstract This article presents a revised HoloGenesis reconstruction of the Hubble expansion rate as a structural tempo of the spacetime lattice rather than as the effect of an independent dark-energy fluid. The central claim is that cosmic expansion reflects the changing realization state of the dark-cloud/subitron lattice understood in HoloGenesis as spacetime itself. The article begins from the corrected subitron architecture. The primitive lattice floor is distinguished from the observed spectral peak of the Cosmic Microwave Background and from the diagonal stride traces associated with tri-orthogonal lattice renewal. This distinction is essential because the Hubble reconstruction must rely on the primitive subitron floor rather than on the observed spectral peak itself. The decisive development introduced here is the temporal coherence count. Instead of deriving the coherence count from the observed Hubble rate the article defines it as the number of primitive subitron cycles elapsed during the coherence age of the realized spacetime lattice. This coherence age is not treated as a mere inverse of the Hubble rate. It is interpreted as the duration since the lattice became a frequency-capable standing structure. From this temporal coherence count the Hubble rate is reconstructed as the reciprocal tempo of lattice coherence age. In this interpretation the expansion rate is not caused by a mysterious substance added to the universe. It is the observable tempo of the lattice’s own age-diluted realization. The article then develops a bounded density-window interpretation. The realized density of the lattice is understood as standing between an upper roof capacity and a lower floor condition. Near the beginning of the realized lattice the density state is close to the roof. As the lattice expands the realization ratio diminishes and the realized density approaches the floor. It does not collapse toward absolute nothingness. Rather it tends toward the nonzero support condition of the lattice. This makes realized density a time marker. It decreases because the lattice expands and because the same realization is distributed across a growing coherence horizon. The present density state therefore encodes the age and dilution state of the lattice rather than merely serving as a conventional inventory of matter and energy. The article also reinterprets the cosmological constant as the curvature shadow of the coherence horizon when lattice kinematics are translated into general-relativistic bookkeeping. Within HoloGenesis dark energy is not treated as a separate ontological substance but as a ledger effect arising from the way horizon-scale lattice curvature is represented inside conventional cosmological equations. The final claim is measured. HoloGenesis does not yet claim to have completed an empirical proof of the Hubble rate in the standard sense. It proposes a coherent reconstruction pathway: if the coherence age of the lattice can be independently grounded from the HoloGenesis origin sequence and the structural interpretation of the CMB then the Hubble rate follows as the cosmic tempo of spacetime-lattice coherence.
Grégoire Mommaerts (Fri,) studied this question.