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I've always thought it interesting to think about what space really is. I mean, if you think about what lies in between atoms, where there is nothing at all, what is that nothing? It has been stated in some laws of physics that space cannot exist without matter, but if that space doesn't exist, what is it that separates atoms and sub-atomic particles? I personally like to think of it as a defining ground between the world-lines (the "path" an object makes as it goes through space-time), the sole limiting factor in our concept of reality. What do you think it is? Any ideas? |