As for the argument that deja vu is "only the feeling of having seen it before" it is likely that it starts in dreams, which are not always remembered and are often ignored.
Likely? Is it likely that one can see in the future in their dreams? I think not. I think it is by faaaar more likely that it is our brain messing up with registering info and handling memories. I had that feeling too, a lot of times, that I had already dreamt of a certain situation. But if you think of it, we realize our environment solely through the brain, that gets inputs from sensory cells and process those. We kinda live in a simulation of the real world, a simulation done by our brain. It is easy to change our perception if you know how.
Memories are nothing more than stocked information, if something in the process goes wrong you will think this memory is days or weeks old although there simply was a "bug". Time perception is only a perception too.
I think this has been said before and sounds pretty accurate:
scientifically, deja-vu happens when your brain is working as such a fast rate that it makes a memory of the situation in one part of the brain before it actually registers to you what is going on.
Now, if you swear you have written down something and it happened exactly like you wrote it, well then I don't know, but honestly I only half believe this. Please also keep in mind that if you have thought of something, or heard a song for example, you will be far more likey to recognize the thought or the song in a near future when it crosses your way, and you might think it's special although it was only concidence and you heard that same song many tmes before, and simply didn't take as much notice of it before. This happens to me all the time.
For me to be able to tell someone some rather specific details from an odd dream and to have it be presented before them a few weeks later may have indeed been an anomaly, however unlikely.
"scientifically, deja-vu happens when your brain is working as such a fast rate that it makes a memory of the situation in one part of the brain before it actually registers to you what is going on."
We're speaking of the exact moment when the "deja-vu" happens. It's not like the brain is able to make a memory three weeks before it happens, that's bullcrap. What he meant is, the brain makes a memory of what is happening to you in the exact moment it happens, in the same time or shortly before, idk, you realize what happens. That's what I meant by "bug in the process"; instead of registering the event as something new, it registers it as something old. There's no seeing into the future or such things.
I apologise: I may have precognative deja vu; an uncommon varient. And if I do, well that sucks. However I do believe that deja vu does occur originally in dreams. The first times I experienced it I had the usual reaction of "WTF was that???". After a few instances I realized I had seen the events in unusually realistic dreams (Authentic Dreaming according to Wiki) and decided to start writing down the most vivid ones. Many people tend to forget their dreams almost entirely unless there was something in particular to remember. The particular thing usually triggers the deja vu as it happens for real, which (for most people) is why it only lasts a few seconds.
Deja Vu can be explained by a minor seizure in the temporal lobe of the brain that insinuates a flashback or a state of mind that you have done something of the same nature in the past, to the point where it may seem almost identical to what you have previously done.
Here's a question - has anyone had Deja Vu over Deja Vu? Dumb, I know, but I have had the same Deja Vu hit me 4 times before, it was a person talking and the words synchronized perfectly - I think the strangest thing is that you usually don't do anything until Deja Vu is over and the "second moment" has already passed. :P
The phenomena of DeJa Vu is caused by short term memory loss. Like if you did something, then forgot, then when you went to go do it, you felt like you did this already.
Another person above you recalls predicting something months ahead and being right through Deja Vu, I felt like I've had the same, and the result is uncanny.
Another person above you recalls predicting something months ahead and being right through Deja Vu, I felt like I've had the same, and the result is uncanny. - H
I sort of have had this happen. It's with a lot of places, I'll have a dream or something, and a year or a while later, I eventually end up going there it seems. Or I just get the feeling that i've been there before.
There is no evidence that deja vu is a seizure, it's just a guess. I figure that deja vu and precognition both originate in odd dreams. Lots of people just ignore them or forget them because they are dismissed as irrational or unlikely or just more uneventful than a fantasy-dream. Even I dismissed a dream that lead to deja vu because it contained a covered MLVW (very similar to the one pictured below). However when the deja vu occured for real, I realized that the truck (although the same color and design) was being used by a tree service and was towing a chipper instead of a mortar.
Sorry it's so big. Just copy and paste to a word document to see a smaller image. Or go to wiki and type in MLVW and scroll down because that's where I got it from.
I get it all the time too. I think deja vu is your mind just being more acutely aware of what's going to happen rather than actually experiencing it twice. They say we only use 10% of our brains capacity. I think dejavu is using that little bit extra.