3 ms·

Huh? It hasn't happened yet in reference frames around the Large Magellanic Cloud, right?

• zeven7 7y ago
  It already happened for those reference frames, they just haven't been able to observe it yet. For any such beings living there, they don't know about the event yet. But when they witness it, they will measure and calculate that the event did occur before today. The only reference frame that could see it and then measure and calculate it as having happened after today would be one travelling faster than c relative to us.
  • mirimir 7y ago
    OK, I get it. Thanks.
• im3w1l 7y ago
  A reference frame does not have a notion of position. By past I meant the "past from the perspective of someone on Earth right now, possibly traveling at near speed of light in some direction".