What exactly is deja vu?

Deja vu is a phenomenon that everyone of us have experienced, that creepy feeling when you enter a room in a new situation and you tell yourself:

"I've been here before. Here, everything is familiar to me".

It turns out that we can provoke forms of deja vu of subjects in experiments. Because of that there is a theory that tells us that deja vu simply cause fragments of memories that we've already stored somewhere in the brain, and they can be awaked with entering a new environment that is similar on something that we've already experienced.

Because of that we don't have to call on parallel universes, we don't have to call multiverse to explain the phenomenon of déjà vu.

Again, there is another question:

Would it be ever possible on any scale to turn between different universes?

And the answer is actually unclear.

Physicists believe, for example, that somewhere there really is a multiverse that exists even in our living room.

We are waves, vibration waves given from function. These waves vibrate, then divided into portions over time.


You can see more in the video below.