eli5 Is it correct to think of events happening on the far side of the universe or in a different galaxy as occurring “at the same time”?

Question

eli5 Is it correct to think of events happening on the far side of the universe or in a different galaxy as occurring “at the same time”?

In: Physics

Answer 1

As you can see, it’s hard to answer this question without bringing up topics such as ‘observer’ and ‘relativity’.

The answer is yes, with the contingency that you could never prove or get outside verification that these events occurred at the same time (within a reasonable time frame)

Clearly things are happening at this moment on the other side of the universe. We can just never know or verify what those things are (until the light reaches us)