I just told you exactly why not. As unlikely as it is that a person making a clichéd argument about the existence of god on an Internet forum would have a least one friend, the concept is at least self-consistent and is not logically or physically impossible, and hence is believable (albeit with some difficulty). The notion that the universe was created by an omnipotent God is another matter altogether, and in any case has nothing in common with belief in a random forum-user's friend, so it isn't a valid comparison in the first place.