Maybe gravity is just a vital 1D component of the whole 3D world, after all it has only one "line" to it really. No depth, no length, only height.
It might be mysterious but let's cut to the chase, its only about one thing, what we call "down".
If anything I think we are "falling upwards". This makes it possible for the dimension to both exist
and be infinite. The going upwards motion stops it falling too far, the falling stops it going upwards too far. Sounds like perpetual motion, right?
Thats because it is.
If gravity is a dimension, the dimension makes different object densities make them go "down" harder or softer, we just put a label to that and call it the "weight" of things.
Language has been abused to make it hard to understand things.
Now add another dimension to that and you have 2D aka the flat earth/plane of existence. I think the 3rd dimension isn't what we think it is, I dunno man, its like the dimension that makes volume possible, right? Well you've had to take 1D (downwards) and add another (a flat plane) to give 2D and then all volume/life is contained in the next dimension up, but the kicker is 3D needs 2D and 1D, 2D needs 1D and 1D needs nothing and exists infinitely everywhere and can't ever go away.
God damn it just gimme the Nobel Prize right now.
If 1D were removed from 2D, the 2D plane would vanish. If 1D were removed from 3D, volume and the flat plane would vanish. If 2D were removed from 3D, only 1D would be left. You can't remove 1D aka gravity.
"Gravity always wins" - Thom Yorke