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When velocities approach a percentage of c, velocities do not add linearly (or even close to it).See: ...sorry, you cannot view external links. To see them, please REGISTER or LOGIN

This series approaches infinity so what is the limit? I certainly don't relish calculating that.

Let's take a frame A, in frame A an observer detects an object moving at 99% c in frame B. In frame B an observer detects an object moving at 99% c in frame C. In frame C an observer detects an object moving at 99% c in frame D. Etc, etc ad infinitum. At what point does this interpretation break down? We can continue it infinitely.

QuoteThis series approaches infinity so what is the limit? I certainly don't relish calculating that.I certainly would not be capable of calculating that! To me it simply highlights the confusion when mathematical "infinities" are assumed be infinite.If something is not infinite, it must be finite. How can you claim that something finite "approaches" infinity. However much it travels/increases/changes it is still infinitely far from becoming infinite.