diff --git a/journal/2021-12-21.md b/journal/2021-12-21.md
index ab800ae8a..e77fc7d10 100644
--- a/journal/2021-12-21.md
+++ b/journal/2021-12-21.md
@@ -13,4 +13,5 @@
   - [[brane]]
 - [[push]] [[the expanding circle]]
   - [[trolley problem]] shows up at least in the afterword -- interesting interplay with [[fmri]]
-  - [[anagora]] is a device that tries to help [[people]] [[expand their circles]].
\ No newline at end of file
+  - [[anagora]] is a device that tries to help [[people]] [[expand their circles]].
+- [[knowledge common]]
\ No newline at end of file
diff --git a/knowledge common.md b/knowledge common.md
new file mode 100644
index 000000000..115caa4c5
--- /dev/null
+++ b/knowledge common.md	
@@ -0,0 +1,4 @@
+# knowledge common
+
+- [[pull]] [[knowledge commons]]
+