diff --git a/journal/2023-01-23.md b/journal/2023-01-23.md
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--- a/journal/2023-01-23.md
+++ b/journal/2023-01-23.md
@@ -1,3 +1,8 @@
 - I had a nice weekend, now back to [[work]]... while I have a job :)
   - Removed links and added some more references in [[agora chapter]].
   - Forked into [[agora chapter unlinked]], at least for now.
+- Started reading about [[category theory]] again this weekend, still interesting. I'd like to make a serious effort this 2023.
+  - #push [[category theory]]
+    - resources
+      - [[ncatlab]] ~ https://ncatlab.org
+      - [[a rosetta stone]]