Main Question or Discussion Point
This question may be kind of metaphysical, but I don't understand the relativity of simultaneity and its implications. If the temporal order of two distant events varies depending on the reference frame, are the parts of the event (or a temporal object) simultaneous with it in all frames of reference? What kind of events are relatively simultaneous? I know causality is preserved but is the identity of the thing (except its temporal relations to other stuff)?