The vacuum is assumed to be a tetrahedron lattice forming the possible routes of light waves/particles. Each node point the wave has to choose for two directions of the three possibilities. There are only two choices because of the rotation of the lattice at each node point. conclusion ;
Als here we observe a signal for duality in choices, supporting an entangled symmetry between Charge Parity symmetric sat a distance, a support again for the Raspberry or black berry multiverse.
Is it a ballistic process A: between vacuum particles (transferring light information) connected by the nodes, or B: does the photon particles travel at the backs of vacuum particles?
I suggest it is A.
For gravity see: https://vixra.org/pdf/1710.0034v2.pdf
and: Testing proposals for Human Free Will in the Raspberry Multiverse, Local Entanglement and M&M lightspeed.and: Examples of Variable light-speeds around masses like Planets Venus, Earth etc. see: The O‘Connell effect in eclipsing binaries explained by mass related light speed extinction distances (LASOF) of stars and even planets.