Clarify historical metastability evidence and reliability limits

Separates cohort means from isolated 0.18 eV/atom candidates and states that the prior 2/64 MSUN result is historical capability evidence, not a verified current production rate.

README.md

@@ -61,19 +61,20 @@ The final non-alloy static suite passed profile-specific gates:
 | Semiconductors | 672 | 256 | profile diagnostic | 38.1% | 65.0% | 100.0% |
 | Broad inorganic | 2,688 | 242 | profile diagnostic | 9.0% | 55.1% | 100.0% |
 
-The strongest bounded external stability anchor produced:
+One prior bounded external stability test produced:
 
 - 2/64 M.S.U.N. candidates;
 - mean evaluated `e_above_hull = 0.8750 eV/atom`;
 - two individual candidates at 0.1786 and 0.1837 eV/atom;
 - 3/64 strict relaxation convergence.
 
-This proves sparse support in the desired low-hull region and places observed
-evaluated candidates in an approximately 0.8-to-0.18 eV/atom band. It does not
-prove repeatable high-yield metastable generation. The 2/64 hit rate was 3.125%,
-well below the intended 25-50% yield. A broader 512-candidate screen converged
-58/512, had weighted mean hull 1.2330 eV/atom, and produced no M.S.U.N.
-candidates.
+This is evidence that NexaMat can produce isolated candidates near 0.18
+eV/atom, while the bounded cohort mean remained 0.8750 eV/atom. It does not
+prove repeatable high-yield metastable generation or establish 2/64 as a
+current production rate. The historical 3.125% result was well below the
+intended 25-50% yield, and later cohorts did not fully verify its recurrence. A
+broader 512-candidate screen converged 58/512, had weighted mean hull 1.2330
+eV/atom, and produced no M.S.U.N. candidates.
 
 ## Limitations
 

docs/final_closeout/ARCHIVE_CLOSEOUT_2026-07-24.md

@@ -17,14 +17,18 @@ native/no-repair inorganic candidate generator. The final non-alloy panel passed
 its profile-specific static gates, and the strongest SSB lane produced 595
 accepted candidates from 4,096 raw samples.
 
-The metastability campaign reached meaningful but incomplete evidence. Evaluated
-structures entered an approximately 0.8-to-0.18 eV/atom band, including 2/64
-M.S.U.N. candidates at 0.1786 and 0.1837 eV/atom. That was genuine progress,
-not a complete miss. It was also far below the desired reliable yield: the
-observed hit rate was 3.125%, strict relaxation convergence was 3/64, and the
-campaign's practical ambition was at least 25% and ultimately 50%. Later
-architecture work improved representation AUC, force magnitude, and external
-teacher agreement without making the metastable yield repeatable.
+The metastability campaign reached meaningful but incomplete evidence. In one
+prior bounded 64-candidate test, the cohort mean was 0.8750 eV/atom and two
+individual candidates reached 0.1786 and 0.1837 eV/atom. The correct claim is
+that NexaMat demonstrated the ability to produce isolated candidates near 0.18
+eV/atom while typical evaluated cohort behavior remained closer to the 0.8
+eV/atom regime. That was genuine progress, not a complete miss. Reliability was
+not fully verified: the historical test reported 2/64 M.S.U.N. candidates and
+3/64 strict relaxation convergence, but later cohorts did not establish the
+same rate as repeatable. The campaign's practical ambition was at least 25% and
+ultimately 50%. Later architecture work improved representation AUC, force
+magnitude, and external teacher agreement without making metastable yield
+reliable.
 
 The project stopped because the experiment program had run for weeks and the
 remaining reliability gap no longer justified continuous iteration. This is a

docs/final_closeout/NEXA_MAT_FINAL_MODEL_CARD_2026-07-24.md

@@ -61,19 +61,20 @@ The final non-alloy static suite passed profile-specific gates:
 | Semiconductors | 672 | 256 | profile diagnostic | 38.1% | 65.0% | 100.0% |
 | Broad inorganic | 2,688 | 242 | profile diagnostic | 9.0% | 55.1% | 100.0% |
 
-The strongest bounded external stability anchor produced:
+One prior bounded external stability test produced:
 
 - 2/64 M.S.U.N. candidates;
 - mean evaluated `e_above_hull = 0.8750 eV/atom`;
 - two individual candidates at 0.1786 and 0.1837 eV/atom;
 - 3/64 strict relaxation convergence.
 
-This proves sparse support in the desired low-hull region and places observed
-evaluated candidates in an approximately 0.8-to-0.18 eV/atom band. It does not
-prove repeatable high-yield metastable generation. The 2/64 hit rate was 3.125%,
-well below the intended 25-50% yield. A broader 512-candidate screen converged
-58/512, had weighted mean hull 1.2330 eV/atom, and produced no M.S.U.N.
-candidates.
+This is evidence that NexaMat can produce isolated candidates near 0.18
+eV/atom, while the bounded cohort mean remained 0.8750 eV/atom. It does not
+prove repeatable high-yield metastable generation or establish 2/64 as a
+current production rate. The historical 3.125% result was well below the
+intended 25-50% yield, and later cohorts did not fully verify its recurrence. A
+broader 512-candidate screen converged 58/512, had weighted mean hull 1.2330
+eV/atom, and produced no M.S.U.N. candidates.
 
 ## Limitations
 

docs/final_closeout/NEXA_MAT_FINAL_PROJECT_COMPENDIUM_2026-07-24.md

@@ -22,15 +22,17 @@ that produces useful native candidate pools across six non-alloy inorganic
 profiles.
 
 The second problem was harder. A statically valid crystal can still sit far from
-a stable energy basin. NexaMat reached an approximately 0.8-to-0.18 eV/atom
-band and produced two M.S.U.N. candidates in a 64-candidate bounded screen.
-That is real progress, but it did not become a repeatable high-density
-metastable distribution. The 3.125% hit rate remained far below the intended
-25-50% yield. Several weeks of force, trajectory, conservative-energy, tensor,
-routed-expert, and foundation-residual experiments improved proxies without
-moving the external objective reliably. The project is therefore put on ice
-indefinitely at a clear plateau rather than being called a complete failure or
-being kept alive through unproductive iteration.
+a stable energy basin. In one prior bounded test, NexaMat produced two M.S.U.N.
+candidates from 64 and individual hull values near 0.18 eV/atom, while the
+cohort mean remained 0.8750 eV/atom. This shows isolated low-hull capability,
+not a typical 0.18 eV/atom distribution or a verified production yield. Later
+cohorts did not fully verify recurrence of the historical 3.125% result, which
+was already far below the intended 25-50% yield. Several weeks of force,
+trajectory, conservative-energy, tensor, routed-expert, and
+foundation-residual experiments improved proxies without moving the external
+objective reliably. The project is therefore put on ice indefinitely at a
+clear plateau rather than being called a complete failure or being kept alive
+through unproductive iteration.
 
 ## 2. What The Model Is
 

docs/final_closeout/NEXA_MAT_FINAL_TECHNICAL_PAPER_2026-07-24.md

@@ -13,12 +13,13 @@ target-gated evaluation. The final native, no-repair suite passed profile-specif
 static gates for six non-alloy inorganic domains and preserved 100% novelty.
 
 We then investigated whether the recovered generator could be aligned to
-relaxable low-hull basins. A bounded experiment produced two M.S.U.N. candidates
-from 64 selected structures and individual hull values of 0.1786 and 0.1837
-eV/atom, placing observed candidates in an approximately 0.8-to-0.18 eV/atom
-band and demonstrating sparse support in the target region. However, only 3/64
-structures met strict relaxation convergence, the 3.125% hit rate remained far
-below the intended 25-50% yield, a 512-candidate screen produced zero M.S.U.N.
+relaxable low-hull basins. One prior bounded experiment produced two M.S.U.N.
+candidates from 64 selected structures and individual hull values of 0.1786
+and 0.1837 eV/atom, while the cohort mean remained 0.8750 eV/atom. This
+demonstrates sparse capability near 0.18 eV/atom, not typical performance at
+that level or a verified production yield. Only 3/64 structures met strict
+relaxation convergence, later cohorts did not fully verify recurrence of the
+historical 3.125% result, a 512-candidate screen produced zero M.S.U.N.
 candidates, and subsequent force, trajectory, conservative-field, tensor,
 routed-expert, and foundation-residual redesigns did not produce repeatable
 external improvement. We conclude that NexaMat is a useful compact native
@@ -160,7 +161,7 @@ M.S.U.N.:                  0 / 512
 post-relax validity:       high
 ```
 
-The strongest bounded stable-manifold probe produced:
+One prior bounded stable-manifold probe produced:
 
 ```text
 converged:                 3 / 64
@@ -169,10 +170,11 @@ M.S.U.N.:                  2 / 64
 best hull rows:            0.1786, 0.1837 eV/atom
 ```
 
-A follow-up force-basin probe improved mean hull to 0.8165 eV/atom and retained
+A follow-up force-basin probe reported mean hull 0.8165 eV/atom and retained
 2/64 hits but converged only 4/64 structures. Later reproduction cohorts did not
-establish stable recurrence. The external evidence therefore shows sparse
-support, not a reliable metastable distribution.
+establish stable recurrence. These historical results show that isolated
+low-hull candidates are reachable, but they do not establish a reliable current
+metastable distribution or production yield.
 
 ## 6. Mechanism Experiments
 

docs/final_closeout/PROJECT.md

@@ -54,14 +54,16 @@ must not be substituted for the shipped native decoder.
 - Static native generation: useful and production-tolerable on SSB, battery,
   oxide, halide/chalcogenide, semiconductor, and broad-inorganic profiles.
 - Novelty: 100% in the final six-profile static suite.
-- Best bounded metastability anchor: 2/64 M.S.U.N. candidates, mean evaluated
-  `e_above_hull = 0.8750 eV/atom`, with two low-hull candidates at 0.1786 and
-  0.1837 eV/atom. The observed stability band was approximately 0.8 to 0.18
-  eV/atom.
-- Repeatability: not established. The same anchor converged only 3/64 structures
-  at the strict relaxation threshold, and later reproductions did not preserve
-  the result reliably. The 2/64 hit rate was 3.125%, well below the intended
-  25-50% yield.
+- Best bounded metastability anchor: one prior 64-candidate test reported 2/64
+  M.S.U.N. candidates and mean evaluated `e_above_hull = 0.8750 eV/atom`.
+  Individual candidates reached 0.1786 and 0.1837 eV/atom. Those examples show
+  that NexaMat can reach approximately 0.18 eV/atom; they do not mean its
+  typical output lies at 0.18 eV/atom.
+- Repeatability: not fully verified. The same prior test converged only 3/64
+  structures at the strict relaxation threshold, and later cohorts did not
+  establish reliable recurrence. Its historical 2/64 result is evidence of
+  capability, not a current production-rate estimate. It was also well below
+  the intended 25-50% yield.
 - Final campaign verdict: meaningful partial progress followed by a scientific
   plateau. The project was paused because the campaign had dragged on for weeks
   and the remaining reliability gap no longer justified continuous iteration,