diff --git a/server/TODO b/server/TODO
index e8ed57e..47c069f 100644
--- a/server/TODO
+++ b/server/TODO
@@ -100,3 +100,9 @@ display purposes. Perhaps it comes down to the fact that this is a
 *display* hint, not an *interpretation* hint.
 
    ... it should be an interpretation hint, then.
+
+   ... (much later addition:) OTOH, iso-8859-1 is an 8-bit character
+   set with a one-to-one mapping of characters to bytes. So it becomes
+   possible to manipulate and transmit binary data using iso-8859-1
+   in ways that aren't available to utf-8.
+