While the continuous spin of the earth tells a continuous gravity time with discrete aether decay, the discrete ticks of atomic clocks and the discrete spin of atomic matter tell a much more precise quantum time. Since there is not a quantum expectation value for time, quantum time is discrete and fully reversible even while gravity leads to a determinate and continuous expanding universe with a continuous gravity time.
Both charge and gravity forces act through space, but while photons mediate charge force, gravity force simply cannot have a carrier particle since gravity is by its very nature continuous in a continuous space and time. Since there is only one time dimension in GR, atomic time, the continuum of gravity force means that space and time become undefined in the universe at both very small and very large mass accretions, including at beyond the CMB, which is now at 0.9991c. Once the CMB transitions to 1.0c, it will move beyond the event horizon of spacetime, which seems like a really unlikely universe.