Deja vu is a phenomenon where a person experiences a feeling of having already experienced a situation currently being experienced. It is often described as a sense of familiarity and can be accompanied by a strong sensation of recollection, despite the event being experienced for the first time. Some scientists believe that deja vu is caused by a mismatch in the brain processing information, leading to the sensation of a past memory being re-lived. While deja vu is a common and temporary experience for many individuals, the exact cause and mechanism behind it are still not fully understood.
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