You guys are missing the entire point. The Mother has always been a McGuffin. She's the Island on LOST. The story has never actually been about how Ted met her. It's about the growth and maturation he had to do in order to be ready to be with Robin. Just about everything we needed to know about how the show would end has been included in the episodes this season, much like how all the clues we needed to figure out WTF was going on over on LOST were finally made known in the first episode of its final season. The Ted Mosbys out there are searching for "the one." The perfect soul mate who completes their expectation of what an ideal relationship should and must be. Tracy was exactly that. The reality of the situation is that most of the Ted Mosbys out there probably won't find her. Too, and I seem to go back to this over and over again this season, this is the story the writers wanted to tell and the show they wanted to make. From a certain perspective, there is the entirely legitimate ownership of that that the writers have every right to. Call me a Hollywood douche for agreeing with it, but we're fans; they're the creators. They know what they're doing. This is the story they chose to tell. Nothing they shot seven years ago made them do it; this is what they WANTED to do. Thematically, it ties together perfectly and all the clues, all the foreshadowing all the necessary information to deduce this on our own has been there all along. The twist ending of the pilot episode -- "That's how I met your Aunt Robin" -- we should have known (and I started to suspect once Robin and Barney got divorced) that this was exactly how the show would end. This finale fulfilled exactly what those seven words were brimming over with in that entire episode. It's a great twist ending for a pilot episode and it is ultimately a satisfying precursor to an epic love story. Re: Barney: The womanizer finally meets his match not in Robin but his own daughter. Who "Number 31" is doesn't really matter in the equation because she isn't the one we've been watching for 9 years - Barney is. We can assume she became part of Barney's life as the mother of his child, but his daughter was the one to finally teach him and let him grow out of his immaturity. A father's love for his daughter is a powerful one and I completely bought that Barney would change his ways under those circumstances. Likewise, as delightful as Tracy has been, she's also not one of the five characters we have been watching for nine years. That the resolution of her arc has caused such an uproar is as much a testament to the writers crafting such a perfect character to complement Ted as it is to Milioti's performance, but our interest, our emotional investment has always been with Ted, Marshall, Lily, Barney and Robin, both from from a narrative standpoint and from the our vantage point as the audience. Narratively speaking, it makes complete sense that this whole ziz-zag tale would ultimately be about Ted and Robin. Besides, if you want to feel bad for someone or be angry about something, how about Bob Saget? The man narrates the show for 9 years and doesn't utter a single word in the entire 44 minutes of the finale, let alone ever even appear on screen. Clearly I'm in the minority here with this opinion and I'm likely to get eviscerated for it, but I thought the finale was beautiful, heartbreaking, and ultimately very good. This show knows how to dole out the feels, and that's exactly what they did last night. Did the mother drive to the wedding? I think so. Where did the fucking pinapple come from? I don't know. But just like with all those mysteries on LOST that people got so hung up over after the finale, it doesn't really matter. These nitpicks aren't what How I Met Your Mother was about.