I response to my post below, John Loftus writes:
"As I have argued, the only kind of religion that might possibly pass this test is one that embraces some kind of nebulous god (although I don't think one exists)."
"Christianity, for instance, could pass the OTF."
Basically Loftus claims in the first quote that it is impossible that any religion that embraces a descript, definitate, distinct (i.e., not-nebulous) God could pass his test.
In the second, quote, however, Loftus says that it is possible that Christianity pass the test.
These two claims are incoherent (on the reasonable assumption that Loftus isn't as ignorant as to think Christianity "embraces some kind of nebulous god"). Necessarily ~p contradicts possibly p