docs: phase 66 postscript - warmup gate publicly refuted (1594.89); private pick 60d65da/4c93883

EXPERIMENTS.md

@@ -3446,3 +3446,13 @@ harness-only advantages (full-table hazard pool, literal-16 gate, tie
 noise); the deployed number is the honest one. COUNT-COUPLED - public
 trigger arbitrates; previous head remains 60d65da (1541.3/public
 lineage 1575.31) via WARMUP_RATE=0.
+
+**Phase 66 postscript — PUBLIC REFUTATION.** e4745d2 publicly scored
+**1594.89** (+19.6 vs the 1575.31 head). Mechanism executed exactly as
+designed: +38 swaps in the cold scenarios, late-days -263 (-54.8) — but
+early +59.8 and ops +14.4 made the trade ~1.4:1 against, vs ~6:1
+favorable on bgkf warmup. Fourth count-coupled public refutation
+(alpha_static, cliff, cert-first, warmup-gate); alpha 1.0 remains the
+lone converter. bgkf's warmup block over-prices cold-scenario catches
+relative to the public fleet. PRIVATE SELECTION: 60d65da (count-flat
+lam2sp3, expected ~1571) or measured 4c93883 (1575.31); not e4745d2.