diff --git a/src/net/torvald/terrarum/gameactors/ActorWithPhysics.kt b/src/net/torvald/terrarum/gameactors/ActorWithPhysics.kt
index 9a9235446..0f18049f5 100644
--- a/src/net/torvald/terrarum/gameactors/ActorWithPhysics.kt
+++ b/src/net/torvald/terrarum/gameactors/ActorWithPhysics.kt
@@ -781,6 +781,10 @@ open class ActorWithPhysics(renderOrder: RenderOrder, val immobileBody: Boolean
         /////////////////////////////////
         // resolve controllerMoveDelta //
         /////////////////////////////////
+
+        // TODO IDEA  just as CCD starts from 1, not 0, if moveDelta is engaged,
+        // TODO IDEA  FIRST JUST APPLY the force THEN resolve collision or whatever
+
         if (controllerMoveDelta != null) {
             debug3("== ControllerMoveDelta ==")