diff --git a/which came first.md b/which came first.md
index 6e1bd2a32..86ef0b331 100644
--- a/which came first.md	
+++ b/which came first.md	
@@ -1,2 +1,3 @@
 - a [[video]].
   - #go https://www.youtube.com/watch?v=Y3OWgb0Bv-A
+  - [[forests]] or [[clouds]]?