Editing Talk:2878: Supernova

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No.  It could not have already exploded.  This indicates a lack of understanding of relativity.  The more accurate statement would be that from our perspective, Betelgeuse hasn't exploded yet, and from the perspective of Betelgeuse, Earth is as it was 700 years ago (local to earth), and from the midway point between Earth and Betelgeuse, Earth is as it was 350 years ago (local to earth) and Betelgeuse is as it was 350 years ago (local to Betelgeuse).  Simultaneity changes with the perspective of the observer. {{unsigned ip|172.69.22.51|18:44, 9 January 2024}}
 
No.  It could not have already exploded.  This indicates a lack of understanding of relativity.  The more accurate statement would be that from our perspective, Betelgeuse hasn't exploded yet, and from the perspective of Betelgeuse, Earth is as it was 700 years ago (local to earth), and from the midway point between Earth and Betelgeuse, Earth is as it was 350 years ago (local to earth) and Betelgeuse is as it was 350 years ago (local to Betelgeuse).  Simultaneity changes with the perspective of the observer. {{unsigned ip|172.69.22.51|18:44, 9 January 2024}}
 
:It is, however, possibly at the stage of "though we do not yet know it, we are to experience the signs of it having happened prior our own current time" (as in broadcasting "have you exploded yet?" would not have been answerable before it actually does, even if we somehow managed to do so several hundred years ago). But rewrite it as you see fit. I can see why the author of the current version decided not to go into that, and why you might be put off from trying to give the "more correct" version an airing through your own edit... [[Special:Contributions/172.70.91.11|172.70.91.11]] 19:02, 9 January 2024 (UTC)
 
:It is, however, possibly at the stage of "though we do not yet know it, we are to experience the signs of it having happened prior our own current time" (as in broadcasting "have you exploded yet?" would not have been answerable before it actually does, even if we somehow managed to do so several hundred years ago). But rewrite it as you see fit. I can see why the author of the current version decided not to go into that, and why you might be put off from trying to give the "more correct" version an airing through your own edit... [[Special:Contributions/172.70.91.11|172.70.91.11]] 19:02, 9 January 2024 (UTC)
βˆ’
::It would be more of an edit than a re-write, as the statement should simply be struck.  It is incorrect to say that what we see 300 LY away occurred 300 years ago.  We simply have a view of spacetime based on our relative position that, should that position change with respect to Earth and Betelgeuse, would mean different simultaneity (not just from a light perception perspective, but when it comes to causality in general).  If it helps, then I'll go in and remove the errant phrase.
 
  
 
I just redacted much of the explanation because it was riddled with repetitions, errors and scientific imprecisions. (I didn't elaborate on the relativity issue, though, just added "locally" to that sentence.) I Hope you appreciate the result. [[User:Transgalactic|Transgalactic]] ([[User talk:Transgalactic|talk]]) 21:43, 9 January 2024 (UTC)
 
I just redacted much of the explanation because it was riddled with repetitions, errors and scientific imprecisions. (I didn't elaborate on the relativity issue, though, just added "locally" to that sentence.) I Hope you appreciate the result. [[User:Transgalactic|Transgalactic]] ([[User talk:Transgalactic|talk]]) 21:43, 9 January 2024 (UTC)

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