diff --git a/src/content/posts/reading-notes-predictably-irrational/index.md b/src/content/posts/reading-notes-predictably-irrational/index.md
index 337ec16cd..86238be1d 100644
--- a/src/content/posts/reading-notes-predictably-irrational/index.md
+++ b/src/content/posts/reading-notes-predictably-irrational/index.md
@@ -50,5 +50,8 @@ We live simultaneously in two different worlds
 - Social norms are wrapped up in our social nature and our need for community.
 - When you are in the domain of market norms, you get what you pay for
 - When social and market norms collide, trouble sets in
-- People will work more for a _cause_ than for cash
-- 
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+- People will work more for a _cause_ than for cash. Why
+
+  - Because when the market norms entered the lab, the social norms were pushed out
+
+- Even small gifts keep us in the social exchange world and away from market norms
\ No newline at end of file