diff --git a/degesch.c b/degesch.c
index 7063343..ac9cd8a 100644
--- a/degesch.c
+++ b/degesch.c
@@ -3419,6 +3419,14 @@ struct line_char_attrs
 	int bg;                             ///< Background colour (-1 for default)
 };
 
+// We can get rid of the linked list and do this in one allocation (use strlen()
+// for the upper bound)--since we only prepend and/or replace characters, add
+// a member to specify the prepended character and how many times to repeat it.
+// Tabs may nullify the wide character but it's not necessary.
+//
+// This would be slighly more optimal but it would also set the algorithm in
+// stone and complicate flushing.
+
 struct line_char
 {
 	LIST_HEADER (struct line_char)