diff --git a/server/TODO b/server/TODO
index e02ced1..d2cbfef 100644
--- a/server/TODO
+++ b/server/TODO
@@ -78,3 +78,8 @@ is equivalent to
 "Having metrics around as many things as possible really helped us
  identify a difficult problem to diagnose."
   -- https://github.com/blog/767-recent-services-interruptions
+
+@DRMacIver suggests that streaming is useful in a codec, but that it
+should be distinct from lists; this is a really nice idea! The ideal
+codec, then, would support dictionaries, lists, and *streams* as a
+distinct kind of thing.