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+# Return zero values when there's nothing to return
+
+This is only a minor point:
+
+It's a long-running pet peeve of mine that R5RS Scheme specifies "an
+unspecified value" to be returned when there's nothing meaningful to
+return.  It's a remnant from before we had the ability to return
+multiple values, and should be eliminated.
+
+Any operation that has nothing meaningful to return, will return zero
+values in Zisp, and no more.