There is a movie of the same name, it might help you.
Thx Rufus ive seen the movie (thats much easier to understand

) and I was a huge fan of the original tv show but there are massive differences between the books, movie, tv show and even with the radio show it started out as.
But im sure that ive read some where that he meant it to be that way
I think he likes confusion to be honest
and i think the rule was something like
Nothing is impossible, only improbable therfore everything and anything is possible, i see what your saying though