diff --git a/TODO.org b/TODO.org
index 551e2291..d52601b5 100644
--- a/TODO.org
+++ b/TODO.org
@@ -15,7 +15,8 @@ rejected without a record is an idea that gets re-proposed.
 Decided 2026-09-25: the typed read-only text is =str= (renamed from =string=); =String=
 is new, owned, growable, always valid UTF-8, through an allocator. The prelude's text
 builders return =String=; =(Vec u8)= stays for raw bytes. Text is UTF-8 everywhere and
-a character is a code point. Waits on the dyn-unless-annotated design.
+a character is a code point; dyn gets a character tag, so \\I prints as \\I.
+Waits on the dyn-unless-annotated design.
 
 ** NEXT Dyn unless annotated
 Decided 2026-09-25: in both syntaxes an unannotated value is dyn — [6 2 4 9] is a dyn