So I heard that, possibly, two super massive black holes could be merging by the end of this or next year. My question is this, and essentially trying to get my head around, if it takes x amount of time for light to reach us, has this event already happened? And we are just seeing it in its past?
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If a tree falls in the forest and there is no one to hear it, was there really a sound?
You are right it already happened a really long time ago. We just say it’s happening now because it’s only now that we can see the effects of it.
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