the enders game series seems to have something in common with sophies world (my version was sofies welt-german b/ never mind). both authors seem to write brilliant books but can't fit the perfect end. i don't know if thats intentional or they just want to get done with the book. plainly speaking i find one important difference between ender and sophie- in terms of the whole book- while card in xenocide evidently almost rambled on the physics and philosophy syllabus, gaarder used a more primitive approach. in this, many people make a childrens book out of it. but when itc omes down to it, no matter how complicated we explain our ideas, they basics of it are in no need of the complex formulation, or? i'm neither criticising card nor gaarder. just want to say that the idea of 'introduction to philosophy' for sophies world is highly underestimated. the philosophy, in my opinion, happens in my/your/our own head. its what i/you/we make out of the book that really matters, or?