Shared Epistemic Reality: Intersubjective Stabilization, Reference, and Validity under Finite Conditions

This paper examines shared epistemic reality as a stabilized elaboration of the intersubjective domain. The preceding paper on the intersubjective domain showed that subjective orientation stands under the conditions of other orientations and enters an intersubjective space of connection through communicability, reception by others, shared connectability, and correction. The present paper presupposes this structure and asks how more durable shared spaces of reference, expectation, and correction arise from it.Shared reality is understood neither as mere consensus nor as immediate access to a fully determinable external world, but as a correctable form of shared orientation under finite conditions. What matters is not that several subjects possess identical inner worlds, but that they can stabilize references, meanings, expectations, and procedures in such a way that these remain capable of being taken up again, expected, corrected, and tested.The paper reconstructs this movement from the limit of local stabilization through shared reference, expectation spaces, trust, and institutionalization to intersubjective validity, science, friction, and revision. Local stabilization designates a perspective-bound order that provides orientation to an individual cognitive system but is not yet sustained as a shared reference or expectation space.Within the research context of Epistemic Reality, the paper determines the stabilized intersubjective middle between subjective orientation and functional-empirical testing. Science appears as a special case of shared reality under strain, in which intersubjective stabilization is systematically coupled to measurement, repetition, methodological control, and organized revision. Finally, the paper shows that shared epistemic reality remains viable only if friction remains readable as an indication of a need for correction and if shared orders are kept capable of revision.