Explore the history, purpose, and limitations of IQ tests. Understand what they truly measure, why they don't define your full intelligence, and the future of assessing human abilities.

One was 'McFratm'. It's the Neapolitan word for 'brother' - the Napoli faithful now revere the 28-year-old as one of the family. The other nickname: 'apribottiglie'. It means bottle opener ...