Moiré gravity preprint derives q(0)≈15.4 from combined chronometer, supernova, quasar and HII galaxy data
The preprint introduces a Moiré-gravity scalar that alters the Friedmann equation and fits current expansion-rate data only by driving q(0) to roughly +15. The result is in strong tension with all existing evidence for acceleration and lacks a first-principles derivation or perturbation analysis.
The authors solve a modified Friedmann equation coupled to a new scalar field and constrain the single free parameter ϳ against cosmic chronometers, Pantheon+ supernovae, intermediate-luminosity quasars and HII galaxies. They report an acceptable fit that nonetheless produces two acceleration peaks separated by an extremely decelerated epoch at the present day. The study is a pure analytic plus MCMC exercise on public compilations; no new observations or N-body simulations are performed. Standard ΛCDM analyses of the same datasets yield q(0)≈−0.55. The Moiré result therefore constitutes an extraordinary claim whose viability hinges on whether the modified Friedmann equation can be derived from a consistent underlying action and whether the scalar-field perturbations remain stable. No such derivation or stability analysis is supplied. Because the work remains an unreviewed preprint dated 2026, independent groups have not yet tested the code or explored tensions with CMB power spectra and BAO measurements. A minimal strengthening would require submission to a journal with public review files plus explicit comparison against Planck 2018 and DESI Year-1 likelihoods.
DESI: BAO+SN combined likelihood will exclude ϳ=0.677 at >5σ within 18 months if the reported q(0) remains unchanged.
Sources (3)
- [1]Primary Source(https://arxiv.org/abs/2609.16021)
- [2]Supporting Source(https://arxiv.org/abs/2305.15447)
- [3]Supporting Source(https://arxiv.org/abs/2112.01995)