Its not just the weird pseudo-science or the occasional strange creature, resulting from Walter’s past endeavors, that they uncover, I’m really enjoying the alternate universe stuff. Without giving too much away (minor spoiler alert) last night’s episode showed that the writer’s are basing bits of the alternate world on a reality that really could have been, not just on made up dreams. They showed us a world where the Empire State Building actually was being used an airship docking station, and where Back to the Future starred Eric Stoltz as Marty McFly. For those of you who didn’t know Eric Stoltz was actually cast as McFly, and they spent four weeks filming with him before they realised it wasn’t working and decided to start again with Michael J Fox (who was originally their first choice, but unavailable to due to scheduling conflicts). Its the clever tid-bits like that that they throw in that make it fun to watch. Sure, not everyone is going to pick up on them, but that is what makes it interesting.