[GregoryFul]

Actually, the temporal order of events is subject to the observer's position in space. Er, well, one could adjust for distance and assume that A occured before B -- but then, a real event does not happen without an observer -- so... I'm so confused!

[Doctor Stochastic]

Some events are temporally ordered absolutely. Things outside the light cone of an event (forward branch) must come after. There is no Lorenz transformation that can make these events simultaneous.

Events inside the light cone may be simulaneous in some reference frame.