How much do you think Victor's childhood affects his later sex addiction?

Why do you think Victor so readily accepts he could be Jesus Christ?

Given that so much is proved false in the story, how trustworthy is the narrator in general? For example, he claims he went through some portion of medical school, but cannot help help his mother when she is dying.

Do you think Palahniuk presents Victor's sex addiction as a problem he needs rather than one he wants to get over? Do you think think the discoveries at the end of the book could cure him of his addiction?

What is the importance of Denny's wall and why do you think they begin rebuilding it at the end?

How much of the addictions and behavior of the characters in general come from a need for attention?

Do you think Victor's...