Behavior and Belief ─ Vsauce

When we believe in lies, are we just tricking ourselves, or do our beliefs actually make them true? In this episode, I lure unsuspecting game show participants into a giant "human Skinner Box" to discover if they'll create superstitious beliefs. And I'll perform a reverse exorcism, harnessing the power of belief to convince normal people that a spirit has possessed their bodies.

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