Sometimes people see ghosts, but it's not really a ghost. It's like when you look at the edge of something and your brain fills in what’s missing, just like when you're on a train and it feels like the train next to yours is moving. Your eyes can’t always tell the difference between real things and fake ones, especially if there are lights or shadows.
Examples
- You see someone walk by but it was just the flickering light.
- At night you think there’s a person standing still but there's no one there.
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See also
- Why Do Ghosts Appear When You're Scared?
- Why Do Ghosts Appear to Some People and Not Others?
- How Does The Illusion of Depth - Contrast Work?
- How Does Scientists Finally Explain Why We See Ghosts Work?
- Why Do Ghosts Happen?