In a [related Meta question][1], Jalf gave [an answer][2] quoting [a blog post by Joel][3], which is highly pertinent (emphasis added):

> If you’re going to close a user’s question as a duplicate, it has to be a real duplicate. For example, if a user asks, “What does the IP address 128.0.1.1/24 mean?” it’s OK to close that as a duplicate of a more general question like “What do IP addresses of the form a.b.c.d/e mean?” **But it’s not OK to close it as a duplicate of a twenty-seven page guide to netmasks. That’s the moral equivalent of saying “RTFM.”** Stack Overflow is not meant to be a library of reference manuals. It’s supposed to contain the same information as a library of reference manuals, in the form of millions of questions and answers. Combined with Google, that gives us the magical power of a library of reference manuals you never have to read! It’s like, you got to the library, and there’s a wizard there at the door, and you ask your question, and, instead of being told to read a book, you just got (are you sitting down?) the actual answer!

Joel seems to be saying that, no, narrow questions should not be considered duplicates of broad questions. And I see his point: all `C++` questions can be reduced to duplicates of "how do I program in C++".


  [1]: http://meta.stackexchange.com/questions/74080/close-as-duplicate-what-if-only-the-answer-is-a-duplicate
  [2]: http://meta.stackexchange.com/a/74083/170084
  [3]: http://blog.stackoverflow.com/2011/01/the-wikipedia-of-long-tail-programming-questions/