diff --git a/JOURNAL.md b/JOURNAL.md
index 2d996e8..e6d93dc 100644
--- a/JOURNAL.md
+++ b/JOURNAL.md
@@ -44,8 +44,10 @@
 - **Testing Consolidation**: Initialized 'testing_consolidation_20260302' track to standardize simulation testing workflows around the pytest `live_gui` fixture and eliminate redundant `subprocess.Popen` wrappers.
 - **Dependency Order**: Added an explicit 'Track Dependency Order' execution guide to `TASKS.md` to ensure safe progression through the accumulated tech debt.
 - **Documentation**: Added guide_meta_boundary.md to explicitly clarify the difference between the Application's strict-HITL environment and the autonomous Meta-Tooling environment, helping future Tiers avoid feature bleed.
+- **Heuristics & Backlog**: Added Data-Oriented Design and Immediate Mode architectural heuristics (inspired by Muratori/Acton) to product-guidelines.md. Logged future decoupling and robust parsing tracks to a 'Future Backlog' in TASKS.md.
 ---
 
 
 
 
+