diff --git a/README_roadmap.md b/README_roadmap.md
index ee2a95cce..dbc673adf 100644
--- a/README_roadmap.md
+++ b/README_roadmap.md
@@ -19,3 +19,11 @@
  * More unit test coverage
  * Break up large functions into smaller ones
  * Code documentation?
+
+## E2EE
+
+There is some indication that W3C may add E2EE to the ActivityPub spec.
+If they do this then consider the best way to add it. It may mean giving up
+on the "no javascript" policy, or it could be comething only usable
+via a C2S client.
+https://github.com/swicg/activitypub-e2ee