Chris Meredith: Tit for Tat
Chris Meredith: “Long before humans started playing games, natural selection discovered the fundamentals of game theory and shaped animal societies according to its rules. Within species, individuals adopt alternative competing strategies with frequencies that reflect the success of each strategy. Evolutionary Stable Strategies [ESS’s] occur when alternative competing strategies are at equilibrium. Competition within species has generated many [ESS’s] with colourful titles like: Bourgeois, Scrounger, Sneaky, Satellite, Transvestite, and Sex-change. However, co-operation within and between species has generated only one [ESS], TIT FOR TAT.”