diff --git a/notes.md b/notes.md
index 2df26c9..2768593 100644
--- a/notes.md
+++ b/notes.md
@@ -70,6 +70,10 @@ Result: No change, 3200 to 3200. Maybe Rust was already optimizing this into an
 
 Plan: Maybe if the hot inner opcodes, OP_GETFIELD, OP_MUL, and OP_SETFIELD get their own match statement at the top of the function, the step function can exit sooner.
 
+## Cache constants
+
+Result: Regressed again from 2900 to 3700. It's not meant to be.
+
 ## Iterating over instruction list
 
 (upcoming)