docs: explain mixed-traffic instability

1 files changed, 6 insertions, 0 deletions

diff --git a/ROADMAP.md b/ROADMAP.md
index c425356..dd521e4 100644
--- a/ROADMAP.md
+++ b/ROADMAP.md
@@ -502,6 +502,12 @@ checks pass while all performance, finite, alignment, and tracking checks
 fail. Per the frozen stop rule, MT-2 and MT-3 remain untouched, no weaker
 traffic ratio is allowed, and this standard-ResNet accept path closes at 5/10.
 
+The training-only post-failure audit localizes the common instability to stem
+`W[0]` and its momentum at steps 23/69/74 for raw/matched/innovation,
+respectively, with no validation or test evaluation. This narrows any future
+independent method to operator-level gain control or dissipativity; more
+endpoint tuning of the same residual-RMS gate is not justified.
+
 Prepare convolutional local-update primitives and ResNet-20/32/56 protocols early. Queue frozen
 runs opportunistically on authorized idle GPUs. Because BurstCCN already reports CIFAR-10 and
 ImageNet scaling, dataset scale alone is not novel. The oral-level target is a memorable joint