Can anybody explain what Déjà vu is?

Question

Can anybody explain what Déjà vu is?

Answer 1

Déjà vu is the experience of feeling sure that one has witnessed or experienced a new situation previously (an individual feels as though an event has already happened or has happened in the near past). The term was coined by a French psychic researcher, Émile Boirac (1851–1917). The experience of déjà vu is usually accompanied by a compelling sense of familiarity, and also a sense of "eeriness",  "strangeness",  or "weirdness". The "previous" experience is most frequently attributed to a dream, although in some cases there is a firm sense that the experience "genuinely happened" in the past.

The experience of déjà vu seems to be quite common among adults and children alike; in formal studies 70% of people report having experienced it at least once. References to the experience of déjà vu are also found in literature of the past, indicating it is not a new phenomenon. It has been extremely difficult to evoke the déjà vu experience in laboratory settings, therefore making it a subject of few empirical studies. Recently, researchers have found ways to recreate this sensation using hypnosis.

Answer 2

if you mean like what it is as in youve never experienced it before, its like that ive been here and seen this before feeling thats uber weird but if youre asking like why does it happen, then i cant really answer that sorry :D