Cartesian Self

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In philosophy, the Cartesian Self is the counterpart to the Cartesian Other. According to Descartes, there is a divide intrinsic to human consciousness, such that one cannot ever bridge the space between one's own consciousness and that of another.

Descartes concluded famously that Cogito Ergo Sum, "I think, therefore I am", but realized that according to his wax argument you could never similarly demonstrate the existence of the 'other'. However, the Cartesian Self, he concluded, is thus almost entirely self-evident: the existence of some being asking about itself necessarily implied that such a being existed. Because of this, while humans can know everything of the self and its mysteries, we cannot actually know anything of anything that is not the self.

It is based on the whole of the Cartesian Pure Inquirer, where cognitive capabilities and methods of achieving knowledge are alike to all knowers. However, the "knower" (particularly to Descartes) is treated as a featureless abstract, and not an actual person.