Game Of Thrones, and even more so the book series that inspired it, A Song Of Ice And Fire, is a haven of fan-theories about what will happen. Just as George R.R. Martin, with help from David Weiss and Dan Benioff, has created this dense and complex world, so too has the audience managed to come up with an astonishingly detailed and varied array of theories. Some of these are very understandable and, on the whole, believable. From R+L=J to talk of Southron Ambitions or a Grand Northern Conspiracy, there are some that have been incredibly well thought-out, and seem like they could and maybe even should come to pass. Others, meanwhile, are frankly completely ridiculous, even if a similar amount of effort has gone into them, such as Varys actually being a merman (apologies to all the Varys truthers out there...). The one thing they have in common, no matter how likely or outrageous, is that they haven't actually been debunked. Whether they could plausibly happen is a different matter, but for all intents and purposes those theories are still in play until there's word otherwise. Naturally, over the years - and there have been A LOT of them while waiting for new books to arrive - some theories have came and went, disproved by events later in the series, or simply by Martin coming out and saying as much. Like it or not, and for better or worse, these are the theories that turned out to be utter bulls*it...