Intersubjectivity refers to the conditions under which two or more different subjects or individuals relate to each other.
If the subjective refers to an internal or private area, and the objective to an external or public sphere, the intersubjective means first and foremost what happens between two people (or between three or more). Obviously, most forms of communication are intersubjective. Since thought can best be seen as a Self engaged in dialogue with itself, we should classify all communication as intersubjective.
We often assume something to be subjective or objective. It is either inside the Self (even in a Self, isolated from others) or outside the Self.
The concept of intersubjectivity helps us to view most of the human experience as taking place between the Self and others.
Some semioticians, such as Peirce and Mikhail Bakhtin, go so far as to accept intersubjectivity as primary.
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