Am I currently occupying space that previously may have been occupied by an asteroid? Another planet? A star? A nebula?

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Given I’m constantly moving through space, and everything else is constantly moving through space, is it fair to say the exact point in space I’m passing through right now may have previously been passed through by other objects, such as those listed in the title? Are exact (maybe what I really mean is “static” or “fixed”?) points in space even a valid notion?

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Anonymous 0 Comments

No not really. Everything is in relation to everything else, there is no “exact point in space” because that phrase implies that “this point” and “that point” are distinguishable without any objects present, which is not the case. You can imagine having a point, and I say “I have moved that point 10 meters up” but there’s nothing else to compare it to, so how do you know which direction I chose as “up”, how far 10 meters is, and other questions, but there isn’t really an answer to those questions.

And that’s not even accounting for the fact that all of space is expanding, each point (in reference to the objects around it) is getting farther away from every other point.

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