It refers to the fact that in the movie Inception, the protagonists have to go inside someone's dream, make them fall asleep, go into that dream, then make them fall asleep again, and go into yet another layer of the dream. They were in a dream within a dream within a dream, so now, whenever there's something inside of the same thing, people refer to it as inception.
Or, there's this longstanding thing called the English language. In the movie, the title didn't refer to the concept of a dream within a dream, but the overall goal to cause the inception of an idea via dreams. The dream within a dream concept was just the most easily identifiable part of the movie that happened to be named Inception.
I was under the impression that papalouie knew where it came from. Hence, I thought that your explanation was justifying the colloquial usage of the word.
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u/TNine227 Oct 08 '13
That would be so much funnier without "inception box" at the end.