Their argument ends: "there is in the end no unconditional and presuppositionless justification for Ockham's Razor". - Surely there is in the end no unconditional and presuppositionless justification for Anything! - Even Euclid had to base his geometry on presuppositions. Definitions, Axioms, Postulates. - Likewise it is impossible to communicate without language. That is the whole problem with philosophy. Particularly of the post-modern variety.