 Another set of questions concerns the fact that  \((\NB_1)\)  is an objective  norm.[49]  Unlike a subjective norm, such as “\(S\) ought to believe that \(p\) only if \(S\) has evidence for \(p\)”, \((\NB_1)\) does not engage with \(S\)‘s reasons, her beliefs and desires, and this raises the question of how \((\NB_1)\) can serve to guide our belief formation. Objective norms can guide only via our beliefs, and it has been argued that this raises two worries for \((\NB_1\)). In order to be guided by \((\NB_1\)), \(S\) would have to have a belief about whether \(p\) is true. This means, first, that in order to be guided by \((\NB_1\)) the subject would already have had to form a belief as to whether \(p\) and hence the guidance comes too late; and, second, that whatever conclusion the subject comes to as to whether \(p\), the norm tells her to hold that very belief (if she forms the belief that \(p\) the norm gives her a reason to believe \(p\) and if she forms the belief that not-\(p\) the norm gives her a reason to believe not-\(p\)) (Glüer &amp; Wikforss 2009:  44).[50]  It is therefore disputed whether \((\NB_1)\) can be said to be a norm of belief, regulating our belief  formation.[51]