A summary of this great game theory paper which provides a continuous framework for analysing all classes of games. All errors and omissions are mine entirely. All good stuff is down to the authors. Imagine you and a stranger are tasked with lifting a heavy weight. Neither of you know exactly how heavy it is, and whether it will be possible for you to lift it. If the weight is lifted successfully, you each get a reward. If you helped lift it, you pay a cost, depending on your exertion. If the...