Well, when you think about it the game wasn't the most realistic, Jack just went through all of it in what must have been two or three days, if you factor in the fact that he would need to sleep, scavenge food and drinking water, recover after engagements with enemies and use the bathroom, he'll be bumbling around for much longer. So is there some kind of hard reset like there is in The Peculiar Children series? Like watching the bomb fall and total the house? Will that be an element in the plot or are you just using it as an analogy for the whole time loop thing?