What is Déjà vu?

I always thought this was a glitch in the matrix so to speak. For a few years I have had this crazy idea that since time moves parallel to itself, you have already lived your life. Yet, at this very moment, you could be in the process of being born. Maybe Deja vu is a glitch where somehow our consciousness is linked throughout time.

Déjà vu (/ˌdeɪʒɑː ˈvuː/ French pronunciation:  [deʒa vy]) from French, literally "already seen", is the phenomenon of having the feeling that the situation currently being experienced has already been experienced in the past. Déjà vu is a feeling of familiarity, and déjà vécu (the feeling of having "already lived through" something) is a feeling of recollection. Scientific approaches reject the explanation of déjà vu as "precognition" or "prophecy", but rather explain it as an anomaly of memory, which creates a distinct impression that an experience is "being recalled". This explanation is supported by the fact that the sense of "recollection" at the time is strong in most cases, but the circumstances of the "previous" experience (when, where, and how the earlier experience occurred) are uncertain or believed to be impossible. Two types of déjà vu are suggested to exist: the pathological type of déjà vu usually associated with epilepsy and the non-pathological which is a characteristic of healthy people and psychological phenomena. 

A 2004 review claimed that approximately two-thirds of the population have had déjà vu experiences. Other studies confirm that déjà vu is a common experience in healthy individuals, with between 31% and 96% of individuals reporting it. Déjà vu experiences that are unusually prolonged or frequent, or in association with other symptoms such as hallucinations, may be an indicator of neurological or psychiatric illness.

One theory of déjà vu attributes the feeling of having previously seen or experienced something that is currently being seen or experienced to that of having dreamt about a similar situation or place and then forgetting about it until one seems to be mysteriously reminded of the situation or the place while awake. The spontaneity of these types of déjà vu "moments" can catch any person off-guard, especially when they get the sensation from visiting a specific place they have never been to before, to the point where they are in a temporary state of shock and disbelief

Thanks to Wikipedia: Deja Vu

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