My pet theory: deja vu happens because we have actually 'lived' a similar instance in our dreams at some point. But this is also why it's so rare. The odds of our dreams being similar to the future and meeting a threshold for recognition, is very low.
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It diminishes with age, and it can apparently be triggered with certain experimental procedures. I think it is just a false positive match, without even a matching (but perhaps a similar) memory existing before the event.
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Not that much happens in our brains at a conscious level. So I'd be more inclined to attribute things like water dowsing to post-hoch rationalisation of some complex pattern matching going on in the background.
Thanks. Twitter will use this to make your timeline better. UndoUndo
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Apparently, not just me. There's some chatter about it online. Not sure about actual research though
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It is an instantaneous repetition of actual reality. It is a sort of warning issued and received by the brain - most probably like an automatic loop. It is an important tool of self-identification. Interesting is the timing of the phenomenon, not the content, I think.
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