Not step-nephew. Just nephew. He and Claire are blood-related.

Cablerunner and I were working on a theory a while back about alternate timelines, and collecting evidence for it. We noticed that early in first season viewers learn that Claire's mother is in a coma, and has been in a coma for years. Then in Raised By Another Claire tells her boyfriend that if her mother knew she was pregnant she would be disowned, to which her boyfriend replies "You pretty much have been already," implying that maybe her mother was alive after all. We thought it was multiple timelines at once.

Possibly the timeline where Jack meets Claire's mother at his father's wake after returning is the same timeline as the one where Claire's boyfriend tells Claire her mother has practically disowned Claire already, but NOT the same timeline where Claire and her mother get into the car accident and Claire's mother is in a coma?

Just a thought. There is also a scene in one of the first episodes of Season 1 where Sawyer says to Kate, "I know girls like you." Kate responds, "Not girls exactly like me," I thought that was another clue to multiple timelines. I still have a whole list of evidence somewhere...

Anyway, I know in my bones that the Claire mix-up above is not a simple continuity error, it's way too blatant. It's a clue to something big, and it was given to us very early on.

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