We note that robust reliability is emphatically " not " a worst-case analysis. In classical worst-case min-max analysis the designer minimizes the impact of the maximally damaging case. But an info-gap model of uncertainty is an unbounded family of nested sets: formula_204, for all formula_205. Consequently, there is no worst case: any adverse occurrence is less damaging than some other more extreme event occurring at a larger value of formula_206. What Eq. (1) expresses is the greatest level of uncertainty consistent with no-failure. When the designer chooses q to maximize formula_207 he is maximizing his immunity to an unbounded ambient uncertainty. The closest this comes to "min-maxing" is that the design is chosen so that "bad" events (causing reward formula_208 less than formula_209) occur as "far away" as possible (beyond a maximized value of formula_210).