As the rhyme goes, "for all sad words of tongue and pen, the saddest are these, 'it might have been'." But therein lies something that makes X-men stories truly unique in the world of Marvel comic books: the alternate timeline. No other superhero franchise owes so much to the idea of the future to be avoided at all costs or the parallel reality born of decisions that could have been made. Inspired by a Patreon pick, here we sat down and discussed our very favorite X-men alternate timelines and parallel dimensions!