The discussion revolves around the nature of gravity, specifically whether it can be understood as a force that pushes or if it is solely a result of the bending of space-time. Participants explore conceptual representations of gravity and the potential confusion arising from simplified models.
Participants do not reach a consensus on whether gravity can be considered a pushing force or if it is solely a result of space-time curvature. Multiple competing views remain regarding the interpretation of visual models and their implications.
Limitations include the potential for misinterpretation of graphical representations of gravity and the challenge of accurately conveying the complexities of general relativity through simplified models.
Navid Eghbali9 said:Can someone explain how gravity pushes? I know that it bends space-time, and I've seen pictures of this. But in all of the pictures, they are just objects on a flat surface. Is it really like this, because then wouldn't space-time itself have its own gravity.
I agree, this can be very confusing and it's often used by people who have no idea about what it really represents when they attempt to 'explain' GR. It's only a metaphor where three dimensional Euclidian space is reduced to a two dimensional model and 'our' gravity is used to imply how Einstein's gravity can affect things by warping 3D space (the downward displacement represents the altering of 3D space). If you are finding it hurts your brain then join the club and don't feel you need to relate in a faultless way, everything in that model to real life.Navid Eghbali9 said:But in all of the pictures, they are just objects on a flat surface.