Quote:
Originally Posted by maskedmelon
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Sal, space-time is 4-dimensional. The two dimensional "fabric" is something of a metaphor for understanding the effect mass in space-time. And the objects don't have to be "sitting" "on" space-time. They can be below or beside it, it doesn't matter. What matters for the purpose of understanding h concept is that they are essentially points on a plane and the greater the mass, the greater they distort the plane. The balls on a blanket is just a way of isolating and understanding the effect without breaking your brain trying to apply it to 3 or 4 (or more) dimensions.
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The 3rd dimension is just a combination of length, width, and height, and the fourth dimension is a measurement of change or movement of three dimensional objects relative to each other, like the cycle of the sun relative to the earth divided into units. Starting from a beginning and end defined by visual marks like location or night. So its easy to understand up to the 4th dimension, but beyond that is foreign to me.
So is substance that's interacting with the bodies of mass 2D or 3D? If its 2D like the models represent then I think that's irrational to believe as a cause or explanation of gravity for multiple logical reasons.
If its 3D then that's closer to Tesla's explanations because those "imaginary points in space" that define the "fabric" would be better defined or understood as electromagnetic vortices, not just "space or imaginary points of reference".