Re: Instantaneous Communications plus Time Dilation Equals ???
Let me try another analogy. (I apologize in advance if this comes across as condescending.)
You and three of your gamer buddies are sitting around the table (one per side). In the middle of the table are four dice. They are arranged in a square, rotated roughly 45° to the table. Now, which die is in front?
"It depends. In front of who?"
Exactly! "Front" is a relative frame of reference. Picture you and your buddies each having a world-line extending in front of them, and the dice represent events. Which event happens, "first" depends on which observer we are talking about. (This example is exaggerated, but I think the principle is sound.)