Well...
The core of the newer question is:
has anyone ever had an accident while wearing headphones that could have been avoided if they hadnt had them on, or has anyone had a near miss without headphones that would have been an accident if they had have had headphones on??
The current answers are 2 straight-up opinions that don't really answer the question and 2 anecdotes that reach opposite conclusions. No answers based on real data... And that's what came in within 4 hours... That pretty much seals it that the question is "not constructive", to me...
My opinion: both should be closed.
There's some differences in what's being asked that I think mean the new question really isn't a duplicate of the old question. The new one seems like maybe it could be changed into something more constructive, perhaps asking for scientific studies instead of anecdotes...
General Rule: If the new question duplicates the old question and is a candidate for closure (not constructive, etc), it's appropriate to close it as a duplicate of the old question.