When I was a freshman at Dartmouth one of the classes I was most interested in taking was on game theory, which sounded both fabulously fun (games!) and incredibly interesting (theories!) Luckily I read the reviews of the class before I signed up which unanimously decried the class as not at all fun and not at all interesting.

Game theory encompasses a variety of explanations of relatively simple behavior in mathematically complex ways. For instance, in A Beautiful Mind, John Nash stumbles upon his famous equilibrium concept by checking out ladies at a bar:


Easy, right? Well here’s the mathematical equation for this phenomenon: \forall i,x_i\in S_i, x_i \neq x^*_{i} :  f_i(x^*_{i}, x^*_{-i}) \geq f_i(x_{i},x^*_{-i}).

Dr. Haim Shapiro, game theorist, calls this type of a equation a mathematical x-ray of a situation. Indeed it looks something like the bones of a complex organism. Here, in a TEDtalk, he discusses the Beautiful Mind scene as well as several other examples of strategy:


Well I’m off to meet up with friends for dinner. Now I just have to figure out how to make them pay for my filete a la rossini