diff --git a/notes.md b/notes.md
index 8d2f9f0..879a31b 100644
--- a/notes.md
+++ b/notes.md
@@ -12,3 +12,7 @@ larger the polygon) the more dark the color is shaded.
 
 Add a bunch of dials and switches to the UI to tweak the different configurable
 values.
+
+Crazy idea: add a 3rd dimension. Points with a z-index closer to zero will be
+closer to the screen. I can simulate that by scaling the points and lines and
+applying a blur filter to the points scaled down and further away.