results: close oral B signature screen

1 files changed, 8 insertions, 0 deletions

diff --git a/ROADMAP.md b/ROADMAP.md
index 871f946..73eacb9 100644
--- a/ROADMAP.md
+++ b/ROADMAP.md
@@ -20,6 +20,14 @@ were still running and before any continuous-BCI result was generated. Oral-B co
 sequenced after C4; implementation and CPU-only mechanics may be prepared while the accept jobs
 occupy both authorized GPUs.
 
+**Oral-B development status: failed.** The complete frozen 12-candidate by three-task-seed screen
+found no eligible mechanism. High-learning-rate variants learned the BCI reliably, and several
+innovation/decoder signatures were strong, but every run had the wrong P+/P- error-change
+sign-inversion and error magnitude remained more predictive than temporal error change. Per the
+preregistered stop rule, environment seeds 10--15 and all confirmation model seeds remain
+untouched. This falsifies the current model's claimed emergence of the Harnett derivative signature;
+it cannot be repaired by reporting only its successful learning or decoder results.
+
 ## Frozen accept claims and gates
 
 ### C1. Innovation is necessary under naturally mixed apical traffic