[1] It solves the problem of different concepts of time in quantum field theory and general relativity by treating the quantum concept as the more fundamental so that space and time are not equivalent (anisotropic) at high energy level.
The relativistic concept of time with its Lorentz invariance emerges at large distances.
Hořava's initial formulation was found to have side-effects such as predicting very different results for a spherical Sun compared to a slightly non-spherical Sun, so others have modified the theory.
[5] Nevertheless, observations of gravitational waves emitted by the neutron-star merger GW170817 contravene predictions made by this model of gravity.
[9] Hořava originally imposed the theory to satisfy the detailed balance condition which considerably reduces the number of terms in the action.