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diff --git a/notes/250210-cons.md b/notes/250210-cons.md
index 3146957..1ce97b9 100644
--- a/notes/250210-cons.md
+++ b/notes/250210-cons.md
@@ -178,3 +178,34 @@ multiple values!
 
 (The phrase "argument list" is probably going to stick around forever
 though, even if it's technically wrong in Zisp.)
+
+## Grammar switch-up!
+
+_2026 January_
+
+For [reasons](260106-grammar.html) I've decided to actually use the
+ampersand in place of the dot in Zisp s-expressions.  Not like in the
+paper linked above; the ampersand simply replaces the dot in the
+representation of improper lists.
+
+Here's how some snippets from above would look with the new grammar:
+
+```scheme
+
+(define (map* proc & args)
+  (map proc (list & args)))
+
+(define combine*
+  (case-lambda
+    ((x) x)
+    ((x y & rest) (combine* (combine x y) & rest))))
+
+(define (foobar & rest)
+  (let-values (((x y z) rest))
+    ;; This is a meaningless example for demonstration, since we
+    ;; could have just made the function accept three parameters.
+    ;; The `let-values` here is the one from SRFI 11.
+    ))
+
+(apply display-if-found (lookup '((x & y)) 'x))  ;; displays x
+```