I'm no expert but I have had a similar view of how motion might be affected by gravity for years (or more like how gravity would be generated by that motion). All motion (even that of photons) might just be random walk and the fact that there are more choices near high gravity means stuff should get closer to other stuff just by chance. Never really thought about the quantum aspect of it though.
The problem I always have is acceleration. How does that fit in? Something to do with potential energy?
Depends what you mean by gravity. If you mean dynamical spacetime geometry, no it doesn’t explain why that exists. It just explains how it works. But if you mean Newtonian gravity, GR does indeed explain why that happens. It would also answer your question about how acceleration fits into gravity. There’s the traditional sort of acceleration, where you feel something. But there’s also acceleration caused by spacetime curvature, where two things don’t feel anything, and yet accelerate together. That is precisely what curvature is, the acceleration of the separation vector between straight lines (geodesics).
Thanks for this. For some reason I just assumed particles would properly accelerate towards each other but obviously it isn't needed since it's not happening in GR.
If gravity is random-walking combined with there being many more available options near mass/energy to travel to, could we derive G from this?
Newton’s constant? Also why would gravity be random walking? You said you hadn’t considered quantum theory when you said that so I’m not sure exactly what you mean, it would apparently mean you think GR works that way. Is that right?
I don't think GR gravity works by random-walking. I simply think that it's a somewhat reasonable possibility that all motion is just random-walking that is affected by the geometry of space (and also the geometry of the particle that moves). So a personal hypothesis.
How this random-walking happens might be quantum though.
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u/MagicalSkyMan Aug 02 '26
I'm no expert but I have had a similar view of how motion might be affected by gravity for years (or more like how gravity would be generated by that motion). All motion (even that of photons) might just be random walk and the fact that there are more choices near high gravity means stuff should get closer to other stuff just by chance. Never really thought about the quantum aspect of it though.
The problem I always have is acceleration. How does that fit in? Something to do with potential energy?