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Conclusion

A defensible version of scientific realism can only be fallibilist and selective. In order to be in a position to claim that a concrete object with particular properties exists, a specific argumentation in favor of the presence of each property must be provided.

I have attempted to show that any such convincing argumentation must jointly satisfy four requirements: the requirement of observability in principle, the requirement of measurability, the requirement of causality and the requirement of concordance. The justification of these requirements is based on the fact that they are satisfied by everyday arguments in favor of the existence of ordinary objects, whether actually perceived or not. The requirement of measurability however, doesn't always have to be satisfied as far as ordinary objects are concerned. But in the sciences, the requirement of measurability is a prerequisite for the satisfaction of the all-important requirement of concordance. I submit that this version of episte­mological selective realism on top of being forceful is also in compliance with a moderate empirical philosophy.

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Source: Agazzi E. (ed.). Varieties of Scientific Realism: Objectivity and Truth in Science. Springer,2017. — 411 pp.. 2017

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