  The doctrine just criticized is not the only one that falls under the general heading of sufficientarian views. Roger Crisp (2003) suggests that justice requires giving priority to making people better off, and greater priority to helping a person, the worse off in non-comparative terms she is—up to the point at which the person attains a good enough quality of life. Roughly speaking, the idea would be priority for the worse off, up to sufficiency, and straight utilitarian maximization of aggregate well-being above that line. This is a doctrine of priority (see next section) qualified by a sufficiency line. The question arises, how non-arbitrarily to draw the line. The sufficiency skeptic might hold that the underlying moral reality is that a person's well-being, in all its dimensions, varies by degree, as does any overall index of well-being, and there is no “good enough” line that has the significance the Crisp-type sufficientarian must give to it. A further question is how much priority to give to helping people below the threshold when that competes with helping people above the threshold. If one says no trade-offs are allowed, that a jot of gain for a below-threshold person outweighs any amount of good that can be gained for any number of above-threshold individuals, many will object that this is an extreme and wildly implausible view. But this may be one of those cases in which one person's reductio is another's Q.E.D. (If the sufficiency line is truly arbitrary, then giving any weight to it at all in determining what should be done will be excessive.)