I have never been particularly good with languages. Despite a dozen years of Hebrew school and a lifetime of praying in the language, I'm ashamed to admit that I still can't read an Israeli newspaper. Besides English, the only language I speak with any degree of fluency is Spanish.
I don't think anyone wants a reader to be completely lost - certainly not to the point of giving up - but there's something to be said for a book that isn't instantly disposable, that rewards a second reading.

