Open Problems, Scope, and Closing

This page gathers the volume's open problems in one place: the dynamics of the quasi-longitudinal gamma branch, the absolute-scale calibrations marked open, the spacing choice, and the unclaimed origin questions. Scope is restated plainly — the volume describes present physics and does not claim cosmic origins. Each open item is a gap or conditional, not a hidden contradiction.

Gathered here are the volume's open problems — the quasi-longitudinal branch's dispersion, the absolute-scale items graded open, and the choice between candidate spacings — alongside a restated scope: present physics, origins unclaimed. The closing position is that every open item is a stated gap or conditional, audited in the irreproducibility ledger, not a softened contradiction. Open items span the dispersion dynamics, absolute scale, and the 1/r² gravity normalization.

Open problems (gathered)

Scope, restated

This volume explains present, observable facts by present physics, to a precision it holds below the ten-percent level. It does not reconstruct cosmic origins: the deep past cannot be verified to that standard, and the volume does not pretend otherwise. It asserts no cosmic history—no “steady state,” no alternative beginning. It does raise one objection, grounded entirely in present black-hole physics: if even a black hole cannot confine energy to a point (finite jammed density; energy returned as jets), it is a legitimate physical question how the Big Bang's initial singularity could have existed (Ch 9). That objection stands on present facts; the answer about the past does not, and is left to evidence that can settle it. All microscopic foundations are imported, by single-sentence citation rather than re-derivation, from the physics volume, DOI \href{https://doi.org/10.5281/zenodo.17932566}{10.5281/zenodo.17932566}.

Closing

The honest standing of the volume is this. It takes a single input—a per-nucleon vacuum inflow rate (Ch 1)—and from it recovers gravity and the orbits (Ch 3, Ch 4), treats spin as a first-class phenomenon (Ch 5), derives the galactic acceleration scale and the radial acceleration relation (Ch 6), fits the supernova distances without dark energy (Ch 7), reinterprets dark matter as a vacuum deficit whose darkness is absolute zero (Ch 8), and accounts for the microwave background and black holes as present phenomena (Ch 9). Much of this is degenerate with the standard accounts and is offered as consistency, not proof. A few results are genuinely distinguishing and testable. One—vacuum dispersion—is the sharpest tension: read as a transverse mode it conflicts with the Fermi bound, but the framework's own angle account places gamma in a quasi-longitudinal branch, downgrading the conflict to an open dynamical item; that two-layered status is stated as plainly as the successes. The volume is therefore not a finished theory but a coherent, falsifiable, present-facts framework with explicit predictions and an explicit list of what would break it.

Reproducibility

\begin{sloppypar}

Every quantitative claim in this volume is reproduced by the accompanying package (VP_reproducibility): thirty-four standalone scripts—the per-chapter scripts ch1–ch9, the chapter-2 light-and-burst dynamics suite (light emergence and angle, the collective disturbance, the Goldstone/Maxwell account, the stiffness ceiling, the relativistic law, and the burst energetics, spectrum, propagation, jamming, and up-conversion tests), the post-Newtonian and gravitational-wave checks (ch10_post_newtonian, ch11_grav_waves) and the puzzle, light-element, CMB-anisotropy, and large-scale-structure checks of Ch 12–15 (ch12_puzzles, ch13_bbn, ch14_cmb_aniso, ch15_lss_bao), the Ch 5 transparency test ch_galactic_spin, the Appendix E conjecture ch12_sunspot, and the cross-scale ch_accuracy_dashboard, and the ledger renderer ch10_ledger—two real datasets (SPARC NGC2403_rotmod.dat; Pantheon+ Pantheon+_extract.tsv), and a reproducibility map listing each claim, its script, and its exact expected output—including the vacuum-dispersion tension, the §10.9.1 angle table, the collective-disturbance mechanism, the burst energetics and gravitational-wave link (§(burststiff)), the Goldstone/Maxwell account, the collective-stiffness ceiling, the relativistic energy–velocity law, and the accuracy dashboard of §(dashboard), which the package makes reproducible rather than hides. The scripts use symplectic integrators, fixed (un-tuned) constants except where a single fit is explicitly noted, and no random seeds for the deterministic results. This closing chapter adds no new simulation; its figure is rendered by ch10_ledger.py and summarises the ledger above. \end{sloppypar}

End of the Earth–Cosmos Volume. The fifteen chapters and this ledger are designed to be read as standalone modules and then merged into a single document; foundations remain in the physics volume, DOI \href{https://doi.org/10.5281/zenodo.17932566}{10.5281/zenodo.17932566}.

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