We experience déjà vu when our brain thinks it has seen something before, even though it hasn’t, like when you walk into a room and suddenly feel like you’ve been there a million times.
What makes déjà vu happen?
Imagine your brain is like a detective who keeps notes about everything. Most of the time, the detective writes down what happens in order, first you see something, then you remember it. But sometimes, the detective gets confused and writes the memory before seeing the thing for the first time.
That’s what happens with déjà vu, your brain thinks it already knows what's coming, so it feels like everything is familiar, even though it isn’t!
How does it feel?
It's like when you're eating a sandwich and suddenly think, “I’ve had this exact same sandwich before!” But you haven’t. Your brain just got mixed up with its notes.
Sometimes, déjà vu feels super strong, like the whole world is repeating itself. Other times, it’s just a little nudge that something feels familiar. Either way, your brain is just trying to make sense of everything!
Examples
- You're walking into a café and suddenly feel like you've been here before, even though this is your first visit.
- You see a stranger on the street and instantly know their name, as if you’ve met them many times before.
- You’re in a meeting and start speaking before being asked a question, feeling like you've done this before.
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See also
- What causes deja vu and how does our brain process it?
- What causes déjà vu and why does it feel so familiar?
- What causes déjà vu and why does our brain experience it?
- Why do people experience déjà vu?
- Why do humans experience deja vu, and what causes it?