diff --git a/TODO b/TODO
index 64d4a37..5caef0a 100644
--- a/TODO
+++ b/TODO
@@ -3,3 +3,9 @@ images
 text
     on update for text widget (then don't need to store textures in active data)
 abstract sensors to work with any event, maybe associate data as well?
+
+really weird limitation:
+    I don't think you can currently remove an element from a parent and put it in a child of the same parent
+    because it removes the unused children after the entire parent redraw
+    but the child gets drawn during that, so it will think the child is still active !!!
+    or something like that idk, maybe I need a special enum for parent that includes a undecided state where it may or may not get redrawn by the parent