Why doesn't something need to be witnessed to happen? How can you have an object without a subject? Now you're trying to distinguish between relativity and "real" time, but how can you have any sort of objective time... consider if the universe were a movie and you were God watching it. You could play it in fast forward or slow it down, and it would be the exact same, none of the characters in the movie would be able to tell. It only makes sense to talk about the "speed of change" if your perception relies on that very change. Time is a concept which we have invented and can barely define, it dies with us.
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