The article at this link (PDF File) presents an argument against the most widely accepted reason for the expulsion of Adam and Eve from the Garden of Eden, i.e., the disobeyed God and we punished by exile from Eden.
Truth be told, the scriptural evidence for this conclusion is pretty sparse. A better understanding arises from intertextual references for “the knowledge of good and bad” (hadda’at tov vara) that reveal that this phrase is a figure of speech symbolizing the sexual awareness acquired at the onset of puberty. Used in this way, hadda’at tov vara is seen as a plot device to show that the expulsion was necessary because the existence of procreative immortal beings within the confines of the Garden would result in disastrous overpopulation.