... and you no longer have the loop.

There is no loop. Each piece of code gets compiled once. As one piece of code uses the other one, it gets what is defined at that moment of compilation, that's all - perl won't loop switching compilation from one to the other and from the other to the one and back and forth again over and over.

_($_=" "x(1<<5)."?\n".q·/)Oo.  G°\        /
                              /\_¯/(q    /
----------------------------  \__(m.====·.(_("always off the crowd"))."·
");sub _{s./.($e="'Itrs `mnsgdq Gdbj O`qkdq")=~y/"-y/#-z/;$e.e && print}