Cognitive dissonance arises when different parts of the brain are active, but struggle to communicate with one another. Inevitably, reality and perception clash. One’s perceived reality becomes like a disjointed blending of mutually exclusive narratives, as though trying to reconcile To Kill a Mockingbird and Moby Dick as the same book. In this analogy, the individual tears out various pages from the two books and tries to bind them into one book which haphazardly shifts from one incoherent narrative to another. Eventually, you loose both narratives in the process.
Polarisation happens when different parts of the brain act in opposition to one another. A person may reject all emotion in favor of logic, or they may reject science and reason in favor of religion. Certain parts of the brain become much more dominant than others. In some ways, parts of the brain may become atrophied, whether from lack of use, damage, isolation from the other parts, or some other cause. This results in very specific areas of the brain becoming heavily fortified and mutually exclusive from the ‘weaker’ parts. The weaker parts continue to fade due to a lack of incorporation. Using the previous analogy of To Kill a Mockingbird and Moby Dick, polarisation would be like asserting that To Kill a Mockingbird is a book, but because Moby Dick is not To Kill a Mockingbird, it is somehow not a book. Polarisation is black-and-white, binary hyper-categorisation.
When a brain incorporates the entirety of its functions and parts, one can finally realise that To Kill a Mockingbird and Moby Dick are both books, that there is no false dichotomy of one book being ‘right’ and the other ‘wrong,’ and that they can coexist without being melded into a single, incoherent text.
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