I had a question today. As usual, I searched and found my question already on SO - with a really great answer.
I noticed in the comments it was marked "Possible Duplicate: ...", so I checked out the older question, and it was truly a duplicate. Not to be mean, but it was poorer quality with less valuable answers, although it was an older duplicate.
Now I have another question "What if the duplicate is better than the original?" Again, as usual, I searched and found my question already on meta.SE - and this time, a word-for-word exact duplicate of my question. And here's the kicker - it was marked as a duplicate.
So then I click on it, and then of course I immediately click on the duplicate, and wouldn't you believe that was a dupe too! So then I clicked on the next one, and, this one is also a duplicate... Just before I click on the next one I think to myself "This has got to be a joke!"
I know how linked lists work in memory, and they could go on forever if you don't implement a counter or something until your heap overflows. So this finally leads me to my question:
Is there a limit to the number of duplicate questions in a single chain?
Which I could not find on meta.SE, oddly, but perhaps someone with better search-fu can flag me. I understand now after reading some of the answers that a mod can merge the questions, so is there some sort of garbage collection that rounds these things up into a tidy pile? Or a shortcut on all duplicates to the root question from which ye shall find no known duplicate?
FYI the final answer to my conundrum was:
If the new question is a better question or has better answers, then vote to close the old one as a duplicate of the new one.
You can flag and ask a moderator to merge after closure if they're exactly the same.