I examine “constructivist” arguments for the truth of the thesis of strong observational underdetermination of theories or ‘global’ or ‘total’ theories, ranging from attempts at pythagorizing theories, to the constructibility of alternative language-forms and the generation of alternative theories by ‘algorithms’. The arguments, if correct, tend to underwrite claims to universality and necessity of observational underdetermination or empirical irresolubility.
KeywordsPhysical Object Empirical Content Primary Theory Primitive Relation Ontological Reduction
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