This episode features:

-Will teaching your child to play violin make them smarter?

-Do genes determine someone's personality?

-Do genes determine how smart someone is?

-Do genes affect how happy you are?

-Do genes affect whether you'll get married?

-Are psychopaths responsible for the crimes they commit?

-Do parents affect the political beliefs of their children?

-Has the world gotten better or worse over the last 200 years?

-Did the DARE program reduce drug use?

-Did the Scared Straight program reduce crime?