What is up with deja vu?

Dejavu,
must be the most weirdest things in life... what exacly is it... everyone gets it... its so weird I dont understand it fully... care to discuss??
also maybe want to share when you once had dejavu...

Deja vu is the feeling you'e been somewhere or done something you're currently doing, before. There's been times where I've been somewhere new that I've never been before, and somehow it feels familiar. Maybe I've seen it I a movie or dreamt about it, but that feeling is almost eerie.

I'm not sure butt,,
I heard that one of your eyes sees before your other one.
This sends the image to your brain without you realising and then when you see it a again you get the feeling you've been there before.
Im not sure and I dont think im making sense ahh
.

Deja'vu... sigh I don't I really think it's... I don't know some believe if you have deja'vu then u've had a first life and you are having a second one

I think its a strange and nice thing...it means da moment that hapnes again...u feeel that such moment has come evn befor your currnt time...

I think I have read somewhere that it is linked with alsimers. So everything will be de javu when your 70 lol.

Dejavu??
It's such a facinating subject isn't it?
When I was younger I used to believe that Scientists had built a time machine and went back into the past.
And Whenever we had Dejavu...it was the past repeating itself.
So it would be like...
Right now, we think we are living presently, or the future of the past.
But what if we were actually living in the present of the past, and people are already living in the future???
That's some phenomena huh???
How's that for a mind teaser???
lol
I don't know It's just a thought.
After all anything is possible right???