The Stranger In Your Dreams
"I am the guy in your dreams. The one with a silver knife, ready to slit open your throat"
Sounds like a bad dream? One with a stranger in it trying to hack you to pieces?
Unfortunately, the guy is no stranger. He is someone you have seen in your lifetime.
Our brain lacks the capability to visualize new faces (similar to trying to visualize a new color). The only reason we think of them as strangers is that we forget faces just like we forget dreams.