diff --git a/examples/M-modules/quick/README.txt b/examples/M-modules/quick/README.txt
index c8126e6..8068c74 100644
--- a/examples/M-modules/quick/README.txt
+++ b/examples/M-modules/quick/README.txt
@@ -14,5 +14,5 @@ a QML widget in any Qt application, combining both traditional Qt and QML.
 
 * "palindrome-1" is a demo of generating QML code from Lisp (static QML);
 
-* "palindrome-2" is the same using a 'Behavior' in QML, and a QTimer from Lisp
+* "palindrome-2" is the same using a 'Behavior' in QML, and a timer from Lisp
   (dynamic QML);
diff --git a/examples/M-modules/quick/palindrome-2/palindrome.lisp b/examples/M-modules/quick/palindrome-2/palindrome.lisp
index fefa599..4662679 100644
--- a/examples/M-modules/quick/palindrome-2/palindrome.lisp
+++ b/examples/M-modules/quick/palindrome-2/palindrome.lisp
@@ -11,6 +11,9 @@
 
 (use-package :qml)
 
+;;; QSLEEP note: it's the same as SLEEP in CL, but continuing
+;;; to process Qt events (using a temporary event loop)
+
 (defun run-animation (&optional first)
   (dolist (move-to (nthcdr (if first 1 0) *move-to-positions*))
     (let ((target 0))