Well I guess I didn't want to bring it up but the lines between parentheses and square brackets are being seriously blurred in perl6. Read this longish thread for the full scoop. It's still waiting for a ruling from Larry but in general lists treated as scalars return array references and array references treated as lists dereference themselves.

http://www.perl.com/pub/a/2002/09/p6pdigest/20020929.html?page=2

__SIG__
printf "You are here %08x\n", unpack "L!", unpack "P4", pack "L!", B::svref_2object(sub{})->OUTSIDE