bigbounce

Track A — Bounce vs. inflation

Does a nonsingular matter-bounce produce a distinctive, reproducible, and observationally testable primordial non-Gaussian signature that beats inflation-from-a-singularity as the origin of structure?

The exact matter-contraction amplitude f_NL^local = −35/16 is confirmed by an independent from-scratch in-in computation, which also locates Cai et al. (2009)'s published −35/8 as a uniform missing factor of 2, not a competing result. Transmitted through an explicit nonsingular bounce (the bounce's own cubic term, Δf_NL^bounce = −(5/24)ρ_B), the amplitude becomes f_NL^after ∈ [−0.65, −0.50] across three background choices — the number a survey would actually see.

derived

Readiness: 75% · v3M.0.24

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Track B — The ECH Note

What does minimal Einstein–Cartan–Holst spin-torsion gravity do for the bounce, and what can it not do for dark energy?

The derived axial spin-spin contact term is identified with Popławski's torsion-bounce repulsion mechanism — the positive result. The same algebraic elimination that produces it closes four candidate dark-energy routes — the negative result, stated in the same Note rather than hedged around.

derived

Readiness: 95% · v1N.0.5

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Track C — DESI data products

What do DESI's public galaxy and spectral data show when tested directly against the rotating-black-hole-universe spin-axis prediction and scanned for early-universe anomalies — and what does that say about bounce vs. inflation?

The largest test to date of Popławski's galaxy-spin-axis prediction, run on the 887,472-galaxy high-confidence subset of the 8.47M-galaxy DESI parent catalog with a void-environment cross-check, is a null: the catalog's own sensitivity floor excludes alignment fractions η > 0.98% at ≥95% coverage — a factor of 2–20× below the amplitudes reported in the literature it tests.

null

Readiness: 95% · v4P.0.7

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Contributions

Exact Matter-Contraction Non-GaussianityNovel combination / extension · Track A — Reproducible derivation of f_NL^local = −35/16 with explicit convention, bounce-transmission, and survey-mapping boundaries; independently re-derived from scratch.DerivationN2Bounce Transmission of the Non-Gaussian AmplitudeNovel combination / extension · Track A — The bounce's own cubic term (Δf_NL^bounce = −(5/24)ρ_B) carries f_NL^local through an explicit nonsingular bounce to f_NL^after ∈ [−0.65, −0.50] across three background choices.DerivationN2Multi-Channel Consistency Test (PTA, PBH, high-z PNG)Novel combination / extension · Track A — The transmitted amplitude is checked against pulsar timing, primordial black holes, and high-z non-Gaussianity in one lab spectrum — three honest nulls, not three separate hopes.Null resultN2Minimal-ECH Contact Term Identified with the Popławski MechanismNovel combination / extension · Track B — The derived axial spin-spin contact term is identified with Popławski's torsion-bounce repulsion, stated alongside the same algebra's closure of four dark-energy routes.DerivationN2Chiral Gravitational-Wave Gate — Closed NegativeIncremental refinement / replication · Track B — Minimal ECH + Dirac/Weyssenhoff matter has no parity-odd O(h²) operator; the birefringence signal is structurally k-odd, ≤6e−13 at LISA.Null resultN18.47M-Galaxy Chirality Catalog and Spin-Axis NullNovel combination / extension · Track C — The largest test of the rotating-black-hole-universe spin-axis prediction: a quality-controlled 890,069-row null (z_mom=+0.635, rank p=0.238) with a void-environment cross-check, excluding literature amplitudes 2–20×.CatalogueN2Anomaly Catalogue v2 — Public Science-Target Data ReleaseNovel combination / extension · Track C — 1,244 science-target spectral anomalies released with provenance and cross-matching; answered as a data release, not yet a discovery paper, after no reference class cleared the confirmed-class bar.Data releaseN2Second-Order Threading Map: δN_c vs ζ in a Non-Attractor ContractionNovel combination / extension · Track A — The exact fluid-worldline map reconciling in-in and δN at second order in a matter-dominated contraction — showing the isotropic separate-universe construction fails at O(1), not O(k²), in this non-attractor case.DerivationN2Row 14 — The Joint (r, f_NL) No-Go at a 296× Disjoint c_s WindowNovel combination / extension · Track A — An independent re-derivation and first explicit numerical statement of Li–Brandenberger's r-vs-f_NL no-go: the tensor-viable and non-Gaussianity-viable sound-speed windows are disjoint by ~296×, and the bounce transfer cannot bridge the gap.DerivationN2Row 15 — The Curvaton Cure Dilutes the Flagship Signal Below ReachNovel combination / extension · Track A — The standard curvaton fix to Row 14's tensor problem survives r and n_s, but dilutes the intrinsic −35/16 matter-bounce signal by (r/24)² — closing the last single-field-adjacent escape route with a new structural result.Null resultN2DESI DR1 f_NL Reproduction with an Independent LikelihoodIncremental refinement / replication · Track A — An independent scale-dependent-bias pipeline on official DESI DR1 full-shape/BAO products recovers the published f_NL^loc = −3.6 to 0.057σ — evidence for the lab's reproducibility discipline, not a new constraint.ReproductionN1The Reproducibility-First Lab — Manifests for Every ResultNovel combination / extension · Program-wide — Every experiment, simulation, and compute run across the program carries a manifest (data sources, scripts, compute venue, cost, wall-clock) — a uniform provenance discipline applied to negative results and retractions alike, not only flattering ones.Method / toolN2namaster-proof Verification SoftwareNovel combination / extension · Track C — A small verification library that proves an exact NaMaster bandpower-window inference wasn't shortcut, with tamper-evident, content-bound computational receipts.Method / toolN2