diff --git a/agora pkg chapter.md b/agora pkg chapter.md
index 9e63e0ac1..7805dcd30 100644
--- a/agora pkg chapter.md	
+++ b/agora pkg chapter.md	
@@ -112,7 +112,7 @@ When interpreting the above, an Agora is liberal in what it accepts and tries to
 
 Note that outlines plus linking are sufficient to encode a [[hypergraph]] in an easily parseable way, heterarchies encoding relationships between [[wikilinks]] at different levels. In the opinion of the author this structure is sufficient to encode a [[hypergraph]] in a human friendly way, which might do away with the need for programmatically generated [[block references]][^blockrefs].
 
-[^blockrefs]: [[Block References]] are suboptimal as [[cognitive devices]] due to being [[adversarial]].
+[^blockrefs]: [[Block References]] are suboptimal as [[cognitive devices]] due to being [[competitive]], whereas user generated IDs and structure can be [[complementary]].
 
 - #push [[agora protocol]]
   - a [[protocol]].
diff --git a/cognitive devices.md b/cognitive devices.md
new file mode 100644
index 000000000..3c8d82a32
--- /dev/null
+++ b/cognitive devices.md	
@@ -0,0 +1,2 @@
+- Cognitive Devices can be [[complementary]] or [[competive]].
+- #pull [[cognitive device]]