 Even if there is a plausible sense in which logic can be said to be normative for thought or reasoning, there remains a worry about competition. Logic-based norms usually target full beliefs. If that is correct, a significant range of rationally assessable doxastic phenomena fall outside of the purview of logic—most significantly for present purposes, degrees of  belief.[23]  Degrees of belief, according to the popular probabilist picture, are subject not to logical, but to probabilistic norms, in particular the synchronic norm of probabilistic  coherence.[24]  Consequently, the normative reach of logic would seem (at best) to be limited; it does not exhaust the range of doxastic phenomena.