How Pinkie managed to travel to Dodge Junction, fall into a ravine, join the Beatles, shoot John Lennon for leaving the band for Tree Hugger, and travel to Yakyakistan in one afternoon? Well, accidentally I read Terry Pratchett's Thief of Time recently. Pinkie is simply a very good History Monk... (which also explains the level of schizotech in Equestria – someone apparently put its history back together).