--- a/ProgrammingLanguage.st	Sun Apr 15 07:04:58 2018 +0200
+++ b/ProgrammingLanguage.st	Tue Apr 17 06:18:53 2018 +0200
@@ -224,8 +224,10 @@
 
 id
     "Return a unique integer id of this language.
-     id must be < 32.
-     This id is used as index to various structures used by runtime"
+     For languages built into the VM, it must be < 32.
+     This id is used as index to various structures used by runtime
+     (bytecode set ?).
+     cg: this ought to be better documented - I have no idea, where it is used"
 
     ^self subclassResponsibility