Cartesian Other Cartesian Other In philosophy, the Cartesian Other, part of a thought experiment, is any other than the mind of the individual thinking about the experiment. The Other includes the individual's own body. According to the philosopher Descartes, there is a divide intrinsic to consciousness, such that you cannot ever bridge the space between your own consciousness and that of another. This "other" is in essence theoretical, since one cannot ever be empirically shown such an "other." Put differently, Descartes concluded "cogito ergo sum", "I think, therefore I am," that is, that the presence of a self of which to speak
Cogito, ergo sum one's belief in their own existence would be secure, for there is no way one could be deceived unless one existed in order to be deceived. But I have convinced myself that there is absolutely nothing in the world, no sky, no earth, no minds, no bodies. Does it now follow that I, too, do not exist? No. If I convinced myself of something [or thought anything at all], then I certainly existed. But there is a deceiver of supreme power and cunning who deliberately and constantly deceives me. In that case, I, too, undoubtedly exist, if he deceives me;