 But problems with full rationality abound. First, the notion of full rationality may be incoherent when applied to finite and fallible beings (see Cherniak 1986). It requires adjusting a dense web of beliefs and values. And these beliefs and values are not computable in real-time given limited resources. Second, full rationality will produce justifications that individuals cannot reflectively endorse. Individuals’ actual beliefs and values differ significantly from those which justify the arrangements. (This is one way in which the problem of stability might arise. See below 5.2.)