{
  "abstract": "The eleven-parameter theory of gravity is Einstein's in vacuum, exactly and at every order, and its one departure from general relativity in a black hole is a bounce of the collapsed matter at the Planck density, at a radius 6 × 10 -27 times the Schwarzschild radius for a solar mass, 4 × 10 -28 for 63 M ⊙ , in a region causally disconnected from the exterior. This paper draws the consequence for gravitational-wave physics and states it as an inventory of what can kill the theory. The theory predicts by identity what general relativity predicts: c gw = c, tensor polarisations only, a massless graviton without dispersion, a Kerr ringdown, a gravitational-wave luminosity distance equal to the electromagnetic one, and a constant G; every measurement of these is a test the theory passes with no parameter spent, and every deviation kills it together with Einstein's theory, with no modified-gravity fallback because its vacuum has none. Its one distinctive prediction is negative: there is no Planck-scale structure at the horizon and no gravitational-wave echo, at the delay (8GM/c 3 ) ln(4M/M P ) without rotation, 0.27 s for the Kerr remnant of GW150914 or GW250114, that a reflecting surface a Planck length outside the horizon would produce; the searches, from the claim of 2017 to the model-agnostic analysis of GW250114, have found none, and a confirmed echo kills the theory outright whatever its origin. Its prediction in the primordial sector is the Palatini form of Higgs inflation, n s = 1 -2/N = 0.967 with a tensor-to-scalar ratio of order 10 -12 : a detection of r by LiteBIRD or CMB-S4 at any level would kill it, and the spectral index of Planck with ACT DR6 and DESI, 0.9752 ± 0.0030, already strains it at 2.8σ on the plateau and 4.1σ at α = -400, while the CMB-only combination with SPT-3G, 0.9684 ± 0.0030, does not. The theoretical issues, the unsolved rotating interior, the unbounded Weyl curvature, the junction through the bounce and the black-to-white-hole alternative that the design rule excludes, are examined for loopholes and found to leave the no-echo prediction intact. Read as a condensate of N = 2(M/M P ) 2 gravitons trapped by its own field, in the analogy with the photon condensate of a microcavity and with the proton, nine tenths of whose mass is field energy, the hole is seen through its geometry, through the disk that feeds it, through its depletion when it is light, and in its own quanta only when it is disturbed; the condensate has a threshold at one graviton, M P / √ 2, below which the theory's relic is a single quantum state in a gap the theory leaves open. The attraction is fatal in one direction: gravitational waves cannot confirm the eleven, and they can end them.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": null,
  "author_total": 1,
  "authors": [
    {
      "name": "Patrick .B Reynaud"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/1vk7nc68qh8we.bib",
  "cited_by": 0,
  "doi": null,
  "fulltext_url": null,
  "id": "1vk7nc68qh8we",
  "issns": [],
  "landing_url": "https://hal.science/hal-05749769v2",
  "language": "en",
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "hal",
      "0.phys"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://hal.science/hal-05749769/document",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-14",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/1vk7nc68qh8we.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:44Z",
      "native_id": "hal-05749769",
      "source": "hal",
      "url": "https://hal.science/hal-05749769v2"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "hal:0.phys",
      "subfield": "general"
    }
  ],
  "title": "Gravitational-wave echoes and the eleven: a fatal attraction",
  "title_text": "Gravitational-wave echoes and the eleven: a fatal attraction",
  "type": "preprint",
  "updated_at": "2026-10-30T12:17:44Z",
  "url": "https://research.draconitic.com/paper/1vk7nc68qh8we",
  "venue": "HAL",
  "versions": []
}