Hinted at in reply to PhysBang in #41. You have forgotten that 4 links were given toward end of #1? Maybe have a good read of those again, or for the first time. And as stated in subsequent posts, I don't claim Carver Mead's G4v is necessarily THE correct theory. However given such vector waves have no logical impediment to existence, G4v is for now at least imo THE default choice. Just by that pass, and further, matching GR in other areas where the traditional 'crucial tests' have been performed.