We can't help living in the future - booking flights for holidays, organizing birthday parties, writing applications, sending out invitations, producing T-shirts for tours. But all of this is merely supposition. When the time comes, these things may happen according to plan, or they may not. Life is entirely unpredictable. But what if we could rewrite history? What if we could imagine that things had turned out differently even if they had not? What if we could anticipate all roads to the future, so that we could be prepared for any possible scenario?