It's fitting that a show dealing with people dealing with the uncertainty of what happened with their loved ones, would end on an uncertain story from Nora. Like most have mentioned, whether she was telling the truth or not isn't the heart of the issue. The heart is that Kevin said he believed her and that Nora was there in the moment with him, the two damaged people being able to reconcile after so many lost years. If anybody would believe her it would be Kevin, not just because he loves her but because of all the crazy hotel adventures he had.
As crazy as her story sounds and the holes that could be poked in it, it's no crazier than all the stuff Kevin went through or 4% (forget exact number) of the world's population suddenly disappearing without any explanation.
One thing I do know for certain is that Carrie c00n better get that Emmy nomination this year
. Would love to see Justin Theroux and the show get one as well, considering this will be their last time and it may be the best thing on TV all year.
Her conversation with Matt before entering the machine, seeing Old Nora and Kevin dance at the wedding, and the way her eyes light up when Kevin says he believes her story and she says "You do?"