diff --git a/capra course.md b/capra course.md
index f9d23a2cd..08bf142b3 100644
--- a/capra course.md	
+++ b/capra course.md	
@@ -17,4 +17,6 @@
 		- [[summary]] https://spring.capracourse.net/wp-content/uploads/2021/03/Lecture-3-Summary.pdf
 	- [[lecture 4]] [[the systems view of evolution]]
 		- [[summary]]  https://spring.capracourse.net/wp-content/uploads/2021/03/Lecture-4-Summary.pdf
+		- [[prebiotic evolution]]
+		-
 	- [[lecture 5]]
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