A good game--whether it's a pro football playoff, or a family showdown on the kitchen table--can make you feel, at least for a little while, like your whole life hangs in the balance. This hour of Radiolab, Jad and Robert wonder why we get so invested in something so trivial. What is it about games that make them feel so pivotal?

We hear how a recurring dream about football turned into a real-life lesson for Stephen Dubner, we watch a chessboard turn into a playground where by-the-book moves give way to totally unpredictable possibilities, and we relive a moment where rooting for the underdog makes us rethink what a truly happy ending is.