Do teachers and managers give special treatment to those who they're told have great academic or professional promise? Does this create a self-fulfilling prophecy, regardless of the truth? That's just part of the fascinating Pygmalion Effect.

Short Stuff: Aztec Death Whistle
11:30

How Cognitive Biases Work
56:19

Selects: Why Do Great Flood Myths Seem To Be Universal?
44:03