When FTL is being discussed, and so they are necessary to deal with. Mentioned not because they are interesting, but because they come up time and time again If FTL travel or FTL communication were possible, then causality would probably be violated and some veryįirst we will cover the trivial ways in which things can go FTL. Not inevitable that one day technology will enable us to go faster than light. That someone would one day succeed in flying faster than sound, once technology got around the problems. The truth is that some engineers once said that controlled flight faster than sound mightīe impossible, and they were wrong about that. It was known that rifle bullets go faster than sound long before anĪircraft did. They say no-one will ever go faster than light." Actually it is probably not true that anybody said it It is sometimes objected that "they said no-one would ever go faster than sound and they were wrong. The foreseeable future), but it does cover some of the more common points that are This article is not a fullĪnswer to the question (which no doubt will continue to be discussed in the newsgroups for On the other hand, there are also good reasons to believe that realįTL travel and communication will always be unachievable. In actual fact, there are many trivial ways in which things can be goingįaster than light (FTL) in a sense, and there may be other more genuine It might be thought that special relativity provides a short negative answer to this The moon revolves round my head faster than light! Is Faster-Than-Light Travel or Communication Possible?
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