Voltron is not just a super-awesome action-hero robot made of five mechanical cats. He is a message to kids: The whole is greater than the sum of the parts. Teamwork is ubiquitous: on the playing field, at the office, raising children, lifting a couch. Humans are social animals, and civilization is the result of pooled effort. So it pays to figure out what got us here, and how we can continue to join forces going forward.