That was actually just meant as a pictorial analogy (and a bad one!) to represent where I was coming from, similar to the one in my last post, in an attempt to talk about something that we don't really have the math to handle, at least as far as I can tell.
sorry for the confusion
Thanks, this getting along the lines of what I was looking for.
Yes, preferred frames definitely don't seem like the right way to go.
Could it be possible to not necessarily use a perferred frame, but rather use an entirely coordinate-independent way to define total energy, as JesseM also stated above? I guess we don't know the answer to that though. Have there been any attempts to do so, though?
Coordinate systems and reference frames are man-made mental constructs. Perhaps they are getting in the way here?