Have you ever visited a place, and then you felt that this place was frighteningly familiar to you?
Or  maybe during a deep conversation with a friend of yours, you    suddenly  felt that you had orchestrated this conversation before?    Although you did not do it!
If you find yourself in any of these situations, you have already experienced the deja vu (they already saw) About  60-70% of people have experienced this feeling at least once  in   their  lives. To see something, to hear a voice, to taste a taste,  or  to  smell a  certain scent may make us feel that we have passed it   before,  That has never happened   

 In the previous article you talked about 

https://steemit.com/nature/@mars9/deja-vu-phenomenon   

We also talked about previously Parallel Universe theory

 https://steemit.com/steemit/@mars9/the-phenomenon-of-deja-vu-parallel-universe-theory-1 

  We also talked about Hologram theory 

https://steemit.com/steemit/@mars9/the-phenomenon-of-deja-vu-hologram-theory-stereoscopic-2

 Theory of vision delay

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This is another theory based on how the brain processes new  information and stores long and short memories. Robert Ephron tested  this idea at the Boston Veterans' Hospital in 1963, a theory that can be  relied upon to explain the diagrams so far.
The  theory suggests that delaying nerve response causes deja vu, because  the information entering the information processing centers in the brain  passes through more than one path, and there can be an inconsistency  between those paths. For example, suppose you walked on a street for the  first time, Your right eye, for example, sent the street image to the brain before  the left eye, a fraction of a second, so when the left eye sends a  picture of the street, that information will already be in the brain, so  you'll feel like you've seen it before.
Efron  found that the temporal lobe of the left hemisphere of the brain was  responsible for sorting the incoming information. It was found that the  temporal lobe received this information twice with a slight delay (ms) -  once directly, and again after wrapping it through the right hemisphere  of the brain ,  And when the second transmission is delayed for a little longer, the  brain may record that information as a previous memory, because it has  already been processed, which explains the sudden sense of knowing this  place or event.