Remember when David Mitchell came out with Cloud Atlas and everyone freaked out? Was it a novel? Inter-related short stories? What was with the weird nesting? I don’t get the movie! All our neat little categories are coming tumbling down and now it’s the end of the world! Well, Milan Kundera does much the same in The Book of Laughter and Forgetting (but since it hasn’t become a Major Motion Picture, only literary snobs care…