Many poker players like to say how poker is more than just a game, it's a way of life. Even so, a lot of them probably wouldn't think to claim that poker might have had something to do with life continuing to exist on this planet.
Several years ago, shortly after the publication of James McManus's excellent history of poker, Cowboys Full (2009), I spoke with him about the book. Among the many topics we addressed was the argument his book persuasively puts forth that poker is, in fact, more than "just a game.