nothing is distinct from xkcd, if it exists there is an xkcd about it
Comment on xkcd #3084: Unstoppable Force and Immovable Object
Saleh@feddit.org 1 day agoGod is distinct from the creation and has no physical shape inside the creation so the idea of “object too heavy to lift” is already conceptually nonsensical.
But also in the scope of our physics: What would an object be that is too heavy to “lift” for anyone and anything? It would be the heaviest object in the universe. So what will happen with the heaviest object in the universe? It would be the main center of gravity for everything else. In the same way you cannot “lift” the earth, but rather lift yourself from it as your force will just propel you away from the earth rather than the earth away from you, while you are inside the area dominated by earths gravitational field.
iAvicenna@lemmy.world 1 day ago
Cocodapuf@lemmy.world 1 day ago
When you jump you are pushing the earth away from yourself a little bit, and then some of your gravity pulls the earth back toward you. For a brief moment your jump has in fact altered Earth’s orbit.
Saleh@feddit.org 1 day ago
Relative to the sun, which is the next center of gravity. As you go up the chain you end up with the heaviest object which you cannot move relative to anything, as it is the logical point of relative movement for everything else.
wolframhydroxide@sh.itjust.works 1 day ago
Not relative to the sun, relative to momentum. Changes in the magnitude or direction of velocity are objective, not relative. These translate to real changes in momentum, from any reference frame. A real change in momentum is imparted upon the Earth equal to your momentum at the moment your contact with the Earth ceases.
Cocodapuf@lemmy.world 1 day ago
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.
Saleh@feddit.org 1 day ago
The universe is expanding everywhere all at once in all directions. So space itself is “moving”. It is impossible to define movement except relative to another object made from matter.