Time Travel.

I have a plan to kill all my twins living in other parallel universes.

The one .

/not yet .

I'm not sure, I do agree, though, that "Worm-holes" would be our only option at this point and time, and that's even pushing it...Way I see it, a worm-hole is in fact just a tunnel in a sense, we could never actually go the speed of light, which is why the theory of worm-holes came along, it's pretty much what it is, a shortcut, your not actually time-traveling, just breaking space in order to get somewhere in less time, when a wormhole appears, take space, lets say a planet is 4 light years away, well with a wormhole you can get there in less time. Put it this way, your on a highway, you can either continue going around, or take a tunnel that leads to the same road anyways...its nothing more than a shortcut in my opinion, i don't believe you actually travel through time, as in going into the future or into the past.

*EDIT* --- Guess we'll never know 'til it's done I suppose.