paperclip, you're right about the zero part, of course.
The wormhole thing: no, I don't see why the Universe needs to compensate. The speed limit is not broken. A wormhole is a tunnel through space-time, like I wrote above, just like a tunnel. You do not travel faster than light when you go through the wormhole, you simply go from point A to point B in a very short time. If you had travelled around the wormhole the trip would have taken you much longer.
It is always the traveller's reference frame we are talking about...the traveller never breaks any speed limits, because (the time it takes for him to travel from A to B) divided by (the distance he has covered) does NOT provide anything but a quite normal speed. See my tunnel analogy above.
Now, what you should really be asking is what is a wormhole and how can it create a tunnel in space-time.
Tormod
