I just so happened to be reading 'A Brief History of Time' by Stephen Hawking at the moment, and can therefore answer your question quite easily. The question you posed is exactly the question that Albert Einstein posed, following his famous equation E=MC^2. His answer led to the conclusion that time is relative. You see, c (the speed of light) is reliant on two variables; distance and time. Obviously, as it is the measurement of the distance light travels in a particular measurement of time. Your proposition that C is an absolute value therefore proves that time is the variable value. Time is thusly different for everybody, dependent on location and our speed of travel. The faster we travel, the \'slower\' time goes for us. I\'m sure I\'m explaining it poorly, and I might even be explaining it incorrectly. If you are at all interested in the topic at hand, I can HIGHLY suggest reading 'A Brief History of Time' by Stephen Hawking. Or go for 'A Briefer History of Time' if you want a more compressed and easy to understand version of the book. Greetings, Blooner
