What a masterful finale last night!
Are you as stunned as I am?
There are SPOILERS ahead, so read on at your own risk!
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Well, first of all ... thank GOODNESS for that very last shot! The one at the graveyard, right after Watson told Sherlock (or, Sherlock's grave) that he needed him to fix this, to not be dead. (My heart was breaking for Watson - how I love that actor!) So as Watson turns and walks away, the camera pans off to the left and - *cue big sigh of relief* - there's the man in question, and he's very much alive.
How on earth he did it, I have no idea. But I'm so glad he did!
I mean ... in my heart of hearts I knew he could not be dead. First of all, the series would be over! Second of all, the show would lose legions of fans, angry over this turn of events. (Of course it wouldn't really matter because the series would be over!)
But considering how we (and Watson) saw that climactic scene play out, there seemed to be no other possible result. Who would survive such a fall? And we all saw it was in fact him - we saw Sherlock jump - and we saw, not only his bloodied body, but his face as well. How on earth, could it not be him?
My thinking is ... it had something to do with Molly ... the pathologist friend to whom he went for help just before sending Watson off on the goose hunt (Mrs. Hudson being "shot" and near death). I have no idea what Molly did or how she helped him, but the fact that we were not shown what they did, or what he asked of her, tells me this connection must be key.