HTML5 section tag meanings?

Question

I know there are tons of questions about this topic but I can\'t find an authoritative source for the answer.

This is the official definition and th

Answer 1

Here's the official w3c take on section:

http://www.w3.org/wiki/HTML/Elements/section

Quote: "The [section] element represents a generic section of a document or application."

I guess, in theory if you have an article within an article then your nested selections example might work. But, why would you have an article within an article ? Makes little semantic sense.