diff --git a/journal/2021-09-19.md b/journal/2021-09-19.md
index ec510a6e8..671e929fc 100644
--- a/journal/2021-09-19.md
+++ b/journal/2021-09-19.md
@@ -7,4 +7,8 @@
 - [[ward cunningham]]
   - "Programming is the art and craft of reasoning about the future."
 - [[neil]] contributed a second FR! thank you kindly. he actually knows CSS (I hack it), which is amazing :)
-- [[niplav]]
\ No newline at end of file
+- [[niplav]]
+  - https://social.coop/web/statuses/106958607046457880
+    - [[orthogonality hypothesis]]
+    - [[factored cognition hypothesis]]
+    - [[fundamental theorem of finite factored sets]]
\ No newline at end of file