Konkretna ucieczka od wymogu energii ujemnej istnieje w korpusie — ale tylko za cenę opuszczenia standardowej ogólnej teorii względności. Varieschi i Burstein (2012) przeliczają metrykę Alcubierre'a w grawitacji konforemnej — teorii czwartego rzędu, której równania pola zastępują einsteinowskie — i znajdują, że z funkcją kształtu Hartle'a eulerowska gęstość energii T^00 jest nieujemna, więc materia egzotyczna nie jest potrzebna. Wynik jest przez autorów sformułowany ściśle warunkowo: 'jeśli CG jest poprawnym rozszerzeniem OTW'. Dwa ograniczenia, które korpus czyni widocznymi: grawitacja konforemna to spekulatywna alternatywa dla OTW, nie teoria przyjęta; a wykazana dodatniość dotyczy eulerowskiego T^00 — tej samej jednoobserwatorowej wielkości, o której Santiago-Schuster-Visser pokazali, że jest konieczna, lecz niewystarczająca dla pełnego słabego warunku energetycznego — podczas gdy praca sama przyznaje, że dominujący warunek energetyczny jest naruszony.

I attacked the headline sentence ("A concrete escape from the negative-energy requirement exists in the corpus, but only by leaving standard general relativity") with a dilemma built from counter-sources inside the corpus itself. Horn 1 (all-observer standard): if "escape" means the full WEC, the corpus's own GREEN machine-verified recomputation C-0028 (compute/bach_cg.py, report/bach_hsf_v1_minmax.json) shows the CG warp drive violates the WEC within Conformal Gravity at every speed tested — I verified from the report JSON that on the HSF v=1 grid a rapidity-2 observer at the bubble centre (x=0, rho=0) measures T_uu = -2183.2 while another measures +2183.2 (code units; Eulerian peak 919.3), both signs far above noise, so under either global sign convention there is no escape even granting CG. Horn 2 (Eulerian standard, the level C-0026's regime block fences 'no exotic matter' to): then "only by leaving standard GR" is attacked by Fell-Heisenberg S-0008, whose Eulerian-density positivity WITHIN standard GR the corpus certifies as proven (C-0021, GREEN, restricted ansatz), plus the subluminal positive-energy GR solutions S-0014/S-0015. Both horns failed to flip the truth value: Horn 1 is absorbed because the claim's regime block explicitly states "all-observer WEC is not demonstrated" and its invalid_outside names "any test of the full WEC over boosted observers, which the paper does not perform" — C-0028 settles exactly the question the claim disclaims, and the ledger itself records C-0028 as supports:[C-0026], with C-0028's computation CONFIRMING the claim's Eulerian sentence (one-signed to 1.4e-7 of scale, ASF control mixed-sign as the paper shows). Horn 2 is absorbed because the claim's regime is the Alcubierre metric family, and within GR the Alcubierre Eulerian density is non-positive for ANY shape function (C-0001, GREEN — Alcubierre's own theorem), so for that family "only by leaving GR" is rigorous; the within-GR Eulerian-positive papers all use different metric ansatze and are documented by the corpus as rebutted at the WEC level (S-0001 verbatim: they "merely assert the existence of one sub-class of timelike observers for which the energy density is positive. This is not enough to show that the WEC is satisfied"). I also independently re-verified all three evidence spans (E-0042 at char 13979, E-0043 at 637, E-0044 at 3135, sha256 3c2273b2... matching), confirmed the DEC-concession and author-conditionality sentences in the canonical fulltext, verified SSV's not-sufficient sentence verbatim in S-0001, and ran a live WebSearch for published comments/rebuttals of Varieschi-Burstein (none exist — consistent with the claim's posture and with C-0028 being the first independent check). A3 was probed (unqualified "T^00 is non-negative" vs the paper's own v_s <~ 2.5c cap in Fig. 2) and A4 (regime omits the velocity cap and the r=R distributional wall terms); both are real gaps but neither flips the regime-qualified conclusion, since the paper's flagship v=1 case is superluminal and inside the cap. Reproducible record: attack_c0026.py in my scratch dir runs all checks. || FINDINGS: (1) All three evidence quotes verify EXACT at their recorded offsets against canonical sha256 3c2273b201b168eb...; the "if CG is the correct extension of GR" conditionality and the DEC-violation concession are verbatim in S-0018. (2) C-0028 (GREEN, redteam-verified, supports:[C-0026]) reproduces the claim's Eulerian sentence: HSF v=1 grid one-signed, eulerian_min -919.35 vs opposite-sign residual +1.3e-4 (1.4e-7 of scale); ASF control mixed-sign (-2885/+872) as the paper shows. (3) The same C-0028 kills any unhedged reading: boosted observers see both signs at every speed (bubble centre +/-2183.2 = 2.4x Eulerian peak; v=3 worst -503995), but the claim's regime block pre-disclaims exactly this ("all-observer WEC is not demonstrated"). (4) Within-GR Eulerian positivity exists in the corpus (Fell-Heisenberg S-0008 per C-0021 GREEN)