  One difference between reformed epistemology and fideism is that the former requires defence against known objections, whereas the latter might dismiss such objections as either irrelevant or, worse, intellectual temptations. Included in the objections are not only those such as the Argument from Evil that seek to rebut, but arguments from sociology and, more recently, cognitive science that seek to undermine by proposing a naturalistic cause for basic religious beliefs. For instance, Justin Barrett (2004) posits a HADD (hyperactive/hypersensitive agency detection device), suggesting that a sensitive agency detection device functions properly if the goal is survival but is hypersensitive if the goal is truth. This hypersensitivity then explains the human tendency towards supernatural beliefs, undermining the proper basicality of those beliefs. Clark and Barrett (2011) suggest that this hypersensitivity could itself be part of the divine plan. An alternative, Bayesian, theistic response would be that HADD exaggerates a properly basic probability for theism that is neither high nor too low prior to further evidence. This justifies a part evidentialist, part reformed, program of assessing the all-things-considered probability resulting from the effect of evidence on this basic probability.