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Mantus, I didn't say anything about moving faster than the speed of light. I said getting from one point to another faster than light can. You will never achieve superluminal speeds in your own frame of reference, but you will appear to have done so in another frame of reference. And you will, in every meaningful way, have travelled back in time. The mathematics and the geometry both support that conclusion. It's just that you need to be careful about your definition of 'now'.
Wormholes aren't all that theoretical. They (think they) made (a really, really small) one in a laboratory once a few years ago. Anyone got the link to that?
But while we're on the topic, relativity does not prevent FTL travel. It merely prevents accelerating a massive body to the speed of light. It's causality that prevents FTL travel in a lot of situations, but there are ways around that.
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Strewth
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