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Originally Posted by The Supreme Canuck
You may want to take a look at traversable wormholes - in certain circumstances they could theoretically allow "faster than light" travel without breaking any laws of physics. Here's a link you may find useful: Link You need to get a traversable wormhole that doesn't violate causality, or the whole thing comes undone. |
Another page from our site gives a somewhat better overview;
Traversable Lorenzian Wormholes; an Overview (PDF)
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I'd also like to put in a good word for torchships. They are not FTL at all, but rather accelerate to the half-way point between the start- and end-points, turn around, and decelerate the rest of the way. This allows a ship with enough thrust to get up to a significant fraction of C. Not only would this be very fast, at relativistic speeds time dilation takes effect and the elapsed time for the travellers will appear shorter than it actually is. Again, no laws of physics are violated.
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As Winchell Chung points out on that page, torchships have a very low thrust, so would require vast amounts of power to accelerate to their theoretical maximum speed. You couldn't store that much energy on board in any usable form. But if energy could be beamed to the ship somehow, then very high speeds could perhaps be acheived.