In this case, there's an 11-hour old submission, but at only 6 comments, it's well below the threshold I (a non-privileged HN participant) usually call for dupes, that being ~20 comments.
So no, this is not a dupe.
Edit: For clarity, from the HN FAQ:
Are reposts ok?
If a story has not had significant attention in the last year or so, a small number of reposts is ok. Otherwise we bury reposts as duplicates.
My point goes both ways: if you're linking a previous submission, indicate whether or not you think that the current submission is a dupe.
Otherwise your intent is unclear, and those of us who both flag dupes and try to see that legitimate submissions get a fair chance have to do extra work.
Generally, posting naked links is a poor practice. (There are occasional exceptions. They are rare.) You don't have to write a book, just make context / intent clear, as the examples I've linked show.
indicate whether or not you think that the current submission is a dupe.
Otherwise your intent is unclear
I know that repeated submissions are allowed, so I don't want to claim that it's a dupe. My intent is to link to existing comments, which could be interesting for the newcomers.
https://news.ycombinator.com/item?id=40843749
If you're calling a submission a dupe, say so.
In this case, there's an 11-hour old submission, but at only 6 comments, it's well below the threshold I (a non-privileged HN participant) usually call for dupes, that being ~20 comments.
So no, this is not a dupe.
Edit: For clarity, from the HN FAQ:
Are reposts ok?
If a story has not had significant attention in the last year or so, a small number of reposts is ok. Otherwise we bury reposts as duplicates.
<https://news.ycombinator.com/newsfaq.html>
"Significant" is undefined. I've given my own threshold which AFAIU is roughly that which HN mods use. But I am not one of those mods.
I don't.
My point goes both ways: if you're linking a previous submission, indicate whether or not you think that the current submission is a dupe.
Otherwise your intent is unclear, and those of us who both flag dupes and try to see that legitimate submissions get a fair chance have to do extra work.
I do this myself, e.g.,
Not dupes: <https://news.ycombinator.com/item?id=33942714> <https://news.ycombinator.com/item?id=39242203>
Dupes: <https://news.ycombinator.com/item?id=40785312> <https://news.ycombinator.com/item?id=40678762> <https://news.ycombinator.com/item?id=40481418>
Generally, posting naked links is a poor practice. (There are occasional exceptions. They are rare.) You don't have to write a book, just make context / intent clear, as the examples I've linked show.
Otherwise your intent is unclear
I know that repeated submissions are allowed, so I don't want to claim that it's a dupe. My intent is to link to existing comments, which could be interesting for the newcomers.
Again, for the reasons noted above, a brief clarification would be helpful.
Example below my 20 comments dupe threshold: <https://news.ycombinator.com/item?id=29403605>
And above: <https://news.ycombinator.com/item?id=36879793>