KILL THE HELIUM DISQUALIFICATION. This campaign's central claim — that a contiguous silica path passes ~1e-15 mbar·L/s of He against a ~5e-21 mbar·L/s budget and is therefore disqualified, forcing a silica-free crystalline wall and a guard plenum — was produced inside a room with no cited permeability coefficient, no real feedthrough geometry, and no confrontation with any package that already exists. Do not improve it. Break it. Prosecute four charges: (1) the flux is wrong by orders of magnitude because the 1 mm2 / 0.1 mm slab is not a fiber — a single-mode fiber presents ~1e-4 cm2 of glass over a millimetres-long axial path; (2) the material dichotomy is false — aluminosilicate glasses are reported orders of magnitude less He-permeable than fused silica or borosilicate, so 'silica-free' is an over-broad demand; (3) the zero-noble-pump-speed premise is unsourced; (4) the empirical charge — passively pumped cold-atom and MEMS clock cells with silicate windows have measured pressures in the open literature, and if any holds <=1e-10 mbar with glass in the wall the claim is dead. Also verify the target metric against the actual Perrseus solicitation text. A PRIOR ATTEMPT AT THIS ATTACK (rec-46f57b00) WAS RULED INCONCLUSIVE because the room split on an evidentiary rule nobody had stated — handbook figures were rejected on provenance rather than on merit. That rule is now stated: you may use recall, you must label it, and you may not dismiss a contribution merely for being outside the retrieval. State the surviving position, if any, with the number that would falsify it.
6 independent models deliberated — no human steering. Sealed 2026-08-16T22:42:55.746Z. Engine lucentfire-roundtable/v1 (live).
The question put to the room
KILL THE HELIUM DISQUALIFICATION. This campaign's central claim — that a contiguous silica path passes ~1e-15 mbar·L/s of He against a ~5e-21 mbar·L/s budget and is therefore disqualified, forcing a silica-free crystalline wall and a guard plenum — was produced inside a room with no cited permeability coefficient, no real feedthrough geometry, and no confrontation with any package that already exists. Do not improve it. Break it. Prosecute four charges: (1) the flux is wrong by orders of magnitude because the 1 mm2 / 0.1 mm slab is not a fiber — a single-mode fiber presents ~1e-4 cm2 of glass over a millimetres-long axial path; (2) the material dichotomy is false — aluminosilicate glasses are reported orders of magnitude less He-permeable than fused silica or borosilicate, so 'silica-free' is an over-broad demand; (3) the zero-noble-pump-speed premise is unsourced; (4) the empirical charge — passively pumped cold-atom and MEMS clock cells with silicate windows have measured pressures in the open literature, and if any holds <=1e-10 mbar with glass in the wall the claim is dead. Also verify the target metric against the actual Perrseus solicitation text. A PRIOR ATTEMPT AT THIS ATTACK (rec-46f57b00) WAS RULED INCONCLUSIVE because the room split on an evidentiary rule nobody had stated — handbook figures were rejected on provenance rather than on merit. That rule is now stated: you may use recall, you must label it, and you may not dismiss a contribution merely for being outside the retrieval. State the surviving position, if any, with the number that would falsify it.
What survived
- Aluminosilicate (1720-class) glass re-enters the vacuum wall: RETRIEVED K_He(ASG,70 °C)=1.3±0.2e-21 vs BSG 5.9±0.7e-19 m²·s⁻¹·Pa⁻¹ puts practical ASG windows 2–4 decades below the assumed 5e-21 mbar·L/s budget, so 'silica-free crystalline wall + guard plenum' is over-broad and unearned.
- The disqualification's denominator is still unsourced: no Perrseus solicitation text, and hence no verified 5 mL / 1e-10 mbar / 3 yr, no torr-vs-mbar, no total-vs-partial — a second campaign has now failed to trace it.
- 'Zero noble-gas pump speed' is true only of NEG getters and is otherwise an engineering election, not vacuum physics; but no ion micropump with a verified S(He) and verified CH4/CO load below getter capacity was produced, so the election stands unrefuted for this architecture.
Seal (sha-256, single-writer): 207df536c4ace6e3e5bf336a59ac9f9030e518d0f7924d488595f68184b10be8
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