For consider what would a concession that Info-Gaps robustness model is a Maximin model amount to?
Such a concession will completely demolish Info-Gap’s basic thesis that it is a new theory that is substantially different from all current theories for decision under uncertainty. More importantly, it will call into question the validity of Info-Gap’s many other (unsubstantiated) claims, and by association, the validity of the entire Info-Gap enterprise. In short, there is a lot at stake here for Info-Gap decision theory: The debate on the Maximin/ Info-Gap connection is not just a technical discussion. It is not surprising therefore that the stance adopted in Info-Gap is that of adhering to the Seventh Natural Law of Operations Analysis (see FAQ-54), namely extending an error is preferred to admitting a mistake.
