The Universe is disparate combination of Matter and Space.
The geometry and properties of space diverge along two formulations according to whether matter or space is dominant. When matter is dominant Space Time GR is correct. When Time Space is dominant GR fails to correctly predict observations in some instances. One possible cause for this error appears to be the assumption that time is limited to a maximum speed of 1.
Matter, energy, and gravity are attributes of matter.
Time is an attribute of space.
Space is not an inactive container for matter, it appears to be the origin of time and is an independent force in the Universe.
In empty space, time is flowing at an infinite speed.
The rules change in space with weak gravitational fields and low matter densities where the properties of space and time dominate. I call space and time dominated regions, Time Space.
1. In empty space, time is flowing at an infinite speed.
A. The origin of time, is space.
B. The addition of any mass to infinitely flowing Time Space, changes the time flow to some value less than infinity.
C. The Big Bang was expanding into empty space, the expansion velocities were normal, that is how the infinite time of empty space reacts until matter density slows the expansion.
D. The inertial mass of a moving object is directly divided by the Time Space flow in which it is immersed. The flat galactic velocity curve is potentially caused by stars farther out being in weaker gravity fields, which translates into faster time. Faster time divides into the inertial mass. The star must travel at a higher velocity to produce enough centrifugal force to equal gravity. Inertial mass may be dependent on the local gravitational strength, while gravitational attraction is still Newtonian.
E. Conservation of energy is maintained. If a moving mass enters into a time space where the flow increases by 2X, the inertial mass is reduced by 1/2 and the velocity increases by the square root of 2.
2. In Time Space, light has different properties than in Space Time, except that the LOCAL velocity of light remains the velocity limit for all mass.
A. In Time Space, the velocity of light is dependent on Time Space flow.
B. The wavelength of light is a constant in all Time Space dominated regions. Time space does not permanently change the light that passes through it.
C. Relativistic shifts and velocities are maintained through all Time Space flows. Relativistic shifts are ratios of kinetic energy to absolute energy E=mc^2. Light remains the velocity limit for all Time Space flows, relativistic shifts and velocities are maintained.
D. Because of B and C above, Time Space effects are difficult to see. Velocity that when measured becomes anomalous when compared with the red or blue shifts. Small masses like the nebular material ejected into Supernova Remnants where fresh isotopes can enter fast flow Time Space and self illuminate, because of increasing radioactive decay through reduced half-life.
3. Matter and gravity slow the flow of Time Space.
A. When there is enough matter and gravity present, then matter dominates, GR and relativity, as presently constituted, are correct.
They were both poisoned. I spent the last few years building up an immunity to iocane powder.

The Princess Bride