"...Naturally, the plot ends up with more holes than Blackburn, Lancashire. If all the history up 'til 1955 gets changed, than why am I still in the present? How do all the other characters know that history was changed? Actually, they do explain that -- someone left a note. Now I don't know about you, but I'd like to think of myself as credulous enough to not form international secret societies at the behest of time-travel conspiracy theories on random pieces of paper. It'd be like seeing some bathroom graffiti and forming a religion around "Big Hank"."