它是理论家在每一次巧妙的旅行之后返回的出发点。
It is the starting point to which the theorist returns after every ingenious excursion.
顺便一说，在爱因斯坦的理论中没有什么能阻止时间旅行，通过它可以走向未来也能回到过去。
Incidentally, there is nothing in Einstein's theory that prohibits time travel, be it into the future or into the past.
考虑到翘曲速度旅行的超理论本质，安全问题从来没有可行性的原理问题重要。
Given the highly theoretical nature of warp speed travel, safety issues usually take a backseat to fundamental questions about its feasibility.
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