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Cake day: October 6th, 2023

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  • OK, but being very massive is not the same as what was being discussed.

    Are you sure? I mean the word “heavy” was what I was going on, but there is a distinction I suppose.

    You can also “lift” a finitely massive black hole with anything else massive.

    Yeah, that’s true… But again, I do have to stress that there is no alternative to “finitely massive” you really can’t have an object of infinite mass in our universe.

    Edit: So I guess it comes down to this: If “lift” and “move” are synonymous, then anyone can move any object of finite mass. An object of infinite mass can’t exist in this universe. So you could say that the answer to the question is definitively no, God can’t create a rock so big that he couldn’t lift it, at least not given the laws of physics in this universe as he created it. (For this conjecture we’re assuming God exists and created the universe).

    If God created this universe he could in theory also create other universes with different laws of physics. So in that case, sure, why not, who knows.


  • Well I don’t know about any objects more massive than black holes. I think a black hole is really the only viable form a body can take once there’s enough matter in one place, like there’s an upper limit for the size of stars and after that anything larger collapses into a black hole.

    An object of infinite mass is a contradiction, a universe can’t exist with a single object of infinite mass, it would consume everything instantly.


  • Ok, I think we’re on the same page here. But I’m still not sure about one of your previous comments, you suggested that this “heaviest object” can’t move because it would be the logical reference to which any other body is measured.

    But I want to think about that a bit. Let’s say this heaviest object (HO) has something orbiting it and we’re looking at it from earth with a telescope. As the smaller body orbits, we would probably see this HO wobble, right? Meaning that even if it’s the most massive thing around, it’s still affected by other objects, it can be moved.


  • You need to be thinking about n-body physics though, everything affects everything. If the earth moves, that moves the sun a little, if the sun moves, that moves the local cluster a little, etc. Why wouldn’t that affect this heaviest object?

    I mean, are you suggesting that this heaviest object is simply the center of the universe and that all coordinates are defined around it? Because while that seems practical, I don’t think it’s how matter and space interact.





  • I think if God creates a rock so heavy he can’t lift it, it’s probably a black hole. By definition we can’t know what happens inside a black hole, because no information escapes the event horizon. As it’s now consistent with known physics that we can’t know many aspects of this interaction between God and the black hole, I think this paradox is basically solved. We don’t know any more about the interaction, but it’s no longer a paradox, it’s consistent with physics.