Abstract

This essay examines the effects of a change from traditional to working ontology on some conceptual problems that are under discussion in the literature : the liar paradox, the announced surprise paradox, the measurement problem, and the uncertainty relation. Some aspects of these puzzles appear to be by-products of the use of traditional ontology - as it is implied, for instance, in naïve realism - where conceptual tools have a (mind-independent) life of their own. Considering (in working ontology) what people can actually do with the conceptual tools they have facilitates the access to these puzzles.