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Excellent question. Doesn't seem like "must faster", but if the speed of light isn't the limit, what is the limit?

All this reminds me of the beginning of Mostly Harmless: "One of the problems has to do with the speed of light and the difficulties involved in trying to exceed it. You can't. Nothing travels faster than the speed of light with the possible exception of bad news, which obeys its own special laws. The Hingefreel people of Arkintoofle Minor did try to build spaceships that were powered by bad news but they didn't work particularly well and were so extremely unwelcome whenever they arrived anywhere that there wasn't really any point in being there."

I doubt the experiment will be repeated, but it sure would be awesome if it broke Einstein.




And if there is no limit? (e.g. just practical limits, such as energy availability for our current technology/knowledge)




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