Positive Energy Warp Drive from Hidden Geometric Structures
What do the authors of these warp drive papers think will happen causality-wise when the proposed vehicle effectively moves faster than c? You can't do that without doing nasty things to your light cone[0] and effectively traveling into your own past. Is a prerequisite of entertaining the idea of a warp drive that we disregard causality? As far as I know, there aren't any plausible loopholes in General Relativity that allow you to pop up anywhere and anywhen you want in spacetime.<p>[0] <a href="https://en.wikipedia.org/wiki/Light_cone" rel="nofollow">https://en.wikipedia.org/wiki/Light_cone</a>