diff --git a/journal/2022-10-16.md b/journal/2022-10-16.md
index 04614bda4..fd6abe712 100644
--- a/journal/2022-10-16.md
+++ b/journal/2022-10-16.md
@@ -19,3 +19,5 @@
         - should I implement a simple search algorithm myself for the purpose of understanding how to solve this?
           - tokenization -> compute combinations is trivial but expensive
           - [ ] -> [[bag of words]] is cheap
+            - this actually requires defining what is the source of truth for [[equivalence class]] and for [[proximity]] between nodes
+            - I've always wanted to think of Agora search as as an exploration within a certain [[radius]] of an inferred center of gravity; maybe this is distance in some embedding?