diff --git a/README.md b/README.md
index a0c5b3d0..57f9d664 100644
--- a/README.md
+++ b/README.md
@@ -41,7 +41,7 @@ This project is currently *pre alpha* and not recommended for any real world use
 This is one proposed way that OCAP could work.
 
  * Works from person to person, not instance to instance. Actor-oriented capabilities.
- * Produces negligible additional network traffic
+ * Produces negligible additional network traffic, although see the proviso for shared inbox
  * Works in the same way between people on different instances or the same instance
  * People can alter what their followers can do on an individual basis
  * Leverages the existing follow request mechanism