While considering how to characterize space itself, it occurred to me that it behaves remarkably like a perfect inviscid fluid - offering no resistance to motion, maintaining perfect continuity, preserving patterns without loss. Not adding a substance to space (as in aether theory), but...
Thank you all for your responses.
I understand your concerns about coordinate transformations and the Riemann tensor's 20 components vs. a vector field's 4 components.
However, I may not have been clear enough about what I'm proposing.
I'm not suggesting a simple coordinate transformation...
My thoughts were, if space is flattened, truly flattened and time were permitted to carry the distortion as a vector of change, (forgive my lingo problems) that spacetime would become a 3d vector field in many ways.
Using York decomposition as a foundation, can we reformulate General Relativity to treat space as flat (##R_{ij} = 0##), redistributing all curvature into a vector field for time (##\vec{t}_i##)?
The York decomposition:
$$\tilde{h}_{ij} = \phi^{-4} h_{ij}$$
$$\tilde{K}_{ij} = \phi^2 K_{ij}$$...