Can you demonstrate that the field interpretation tells us to use a preferred reference frame? Can you demonstrate that the field interpretation has anything to do with an aether?Meanwhile you really need to try to understand empty space in its physical relation is neither homogeneous nor isotropic, and also understand what interpretation means. Your understanding of what the maths is telling you isn't correct. You probably don't even realise that what you have is an interpretation, you think it's truth. Ever heard of the Weinberg field interpretation as opposed to the Misner/Thorne/Wheeler geometrical interpretation? Most people have been educated on the latter, and don't know it's only an interpretation.