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In page Déjà vu:

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Collective unconscious is a controversial theory created by Carl Jung that has been used to explain the phenomenon of déjà vu. His theory is that all people have a shared pool of knowledge that has been passed down through generations and we can unconsciously access this knowledge. Some of said knowledge would be about certain archetypes like mother, father and hero or possibly about basic situations, emotions or other patterns. If we can access shared knowledge, déjà vu could potentially be an effect of recognizing one of the collectively stored patterns.[citation needed]