Assuming of course, that &foo is equivalent to "simple var" in your sense. If you see globs as aggregates then defined &foo makes sense. And it's easy to see globs as aggregates, as you can do *foo{THING}. So defined (and exists) applied to global things would just translate to check the "slot in the glob" determined by sigil. Now, I don't know what really goes on down there in perl land, but from the outside this picture works for me.

lodin