Index: kernel/generic/include/arch.h
===================================================================
--- kernel/generic/include/arch.h	(revision 2e4e706a8704952b76f052d1fa9f7a72e9f6d471)
+++ kernel/generic/include/arch.h	(revision 377cce891a2528771a2913795413e5ee00e7911d)
@@ -65,4 +65,10 @@
 } the_t;
 
+/*
+ * THE is not an abbreviation, but the English definite article written in
+ * capital letters. It means the current pointer to something, e.g. thread,
+ * processor or address space. Kind reader of this comment shall appreciate
+ * the wit of constructs like THE->thread and similar.
+ */
 #define THE  ((the_t * )(get_stack_base()))