diff --git a/lib/editor/engine/pen_physics.dart b/lib/editor/engine/pen_physics.dart
index 962159f..6d09e4d 100644
--- a/lib/editor/engine/pen_physics.dart
+++ b/lib/editor/engine/pen_physics.dart
@@ -4,8 +4,7 @@
 // ink feels slightly thinner when moving fast (starvation), while ballpoint
 // stays nearly velocity-invariant.
 //
-// TODO(pen-physics-wire): wired at capture in PenCanvas._toNormalized via
-// tip velocity × pressure. PDF editor path still uses brush gamma only.
+// Wired at capture: PenCanvas._toNormalized and PenEditorScreen._pressureWithPhysics.
 
 import 'brush.dart';