The Culling of Stratholme

The weaker the causality condition on a spacetime, the more unphysical the spacetime is. Spacetimes with closed timelike curves, for example, present severe interpretational difficulties. See the grandfather paradox. In other words if you go back to the culling of Stratholme and kill your grandfather you run the risk of winking out of existance when you return. What however happens if you go back to Stratholme and go into the orphanage and replace your boots with a decent pair knowing that there will be a long dangerous journey ahead of the poor child that you once were? How much will your future be changed by such an action? Will you be the same person? Tatti being an practical person just decided to bring herself a new pair of boots. Did she even notice the new boots escaping from Arthas and his mercenaries or will her future be changed.

((One of the stories of the holocaust that I always remember is one girl who's father insisted they put their sturdy winter boots on before they were taken away by the Germans. They saved her life on the long death march through the snow at the end of the war.))