# Loftus’s Outsider Test for Faith viewed in HD with Bayes’s Theorem

In a recent post, I mentioned that anyone interested in the discussion regarding “atheism versus faith” should be reading John Loftus. Particularly, I noted an argument from his excellent

Why I Became an Atheist,the “Outsider’s Test for Faith” (OTF), which he is elaborating upon in a

new book of that title to be published by Prometheus Books next spring.

Subsequently, I made a comment that piqued his interest by saying that

“[the OTF could be] greatly strengthened by appropriately applying

Bayes’s theorem.” Since my background is in mathematics, this caught

John’s attention.

To quickly clarify what I mean by that, I do not mean to imply that I

can improve upon the OTF itself but rather that a clear understanding of

Bayes’s theorem, which is a mathematical result that underlies

essentially all hypothesis-test reasoning, will greatly enhance the

rigor with which someone might view what the OTF is telling them–and

perhaps get them to take it much more seriously than they might have

otherwise. That’s one thing about mathematics–it’s nearly impossible to

argue with it, try as some ideologues might (maybe they should call

Nate Silver about that?).

LINK (HT: Richard Carrier)