This paper hypothesizes three kinds of gravitonic interactions with spacetime, matter, neutrinos, and with gravitonic self-interactions.It posits that space is digital and its smallest unit is a spin network, here called a pixel.The first kind of gravity results when a graviton is being exchanged when interacting with matter and spacetime. The result is a pixel being destroyed. This is Newtonian gravity on a solar system scale.The second kind results when parallel counter-streaming gravitons between two stars bend spacetime toward the line of centers between these two stars. This results in substantial additional gravity on a galactic scale. This is currently believed to be due to dark matter.The third kind results, when in the vast expanses of deep space, gavitons and neutrinos interact to create pixels using the energy in the electromagnetic field. This results in negative gravity, currently believed to be to due to dark energy. This gravity predominates on scales of the universe. (Correction: Neutrinos were not mentioned in the main paper.)Spacetime will flow into galaxies since pixels are continuously being destroyed by stars. Since space is continuously being created in the voids bewtween galaxies, spacetime will flow towards galaxy clusters. Since inside stars neutrinos are contiuously being created, the creation and destruction cycle of space pixels will contiue and will actually increase.This flow of spacetime results in an ANISOTROPIC universe in the direction of the microwave background, resulting in the Hubble tension.