[purveyor of knowledge]

Well obviously you don't understand the relevance of it Neutralino, because you're not thinking about it hard enough. Don't take everything I say to be meaningless.

I understand that light travel's at a finite speed. However, I am saying that you can get the distance between two mirrors to be increasing at faster than the speed of light. Nobody has actually done this experiment before.

Put it this way, if I am looking at myself in a mirror, and the mirror is moving away from me at more than half the speed of light, then the image of myself which I am looking at will appear to be moving away at more than the speed of light. That is because objects in the mirror appear to be receding at twice the rate as the mirror itself. It's because of reflection. It doesn't mean that the speed of light changes.

And if the mirror is accelerating it throws a whole new aspect. But you don't understand why do you? Well, it has to do with the ramifications of quantum mechanics and the fact of the planck second, and how it relates to the expansion of the universe. Care for me to divulge? If you do, and if you ask for forgiveness for saying I'm a liar, I will tell you all how to see beyond the cosmic horizon which Graybeard said is impossible but I'm saying that nothing is impossible!