if all motion is relative, how do we know the Earth isn’t stationary with everything else in the Universe rotating around us, albeit in a right weird and in uniform way.

Question

if all motion is relative, how do we know the Earth isn’t stationary with everything else in the Universe rotating around us, albeit in a right weird and in uniform way.

In: Physics

Answer 1

We know, because “everything in the universe” would need a reason to rotate around the Earth. Some sort of force that’s created by a planet like the Earth that would keep everything rotating around it, and this force must not be created by any other planet that’s similar to Earth, because the universe rotates only around us and nothing else.

So if this force is created by the Earth, we’d feel it, most strongly, at its origin, no? And we haven’t discovered anything other than the [4 fundamental forces](https://www.space.com/four-fundamental-forces.html). So what we’re observing doesn’t match this theory that the Earth is the center of the universe.