2003-08-06
... ? Tit for TatThe importance of TIT FOR TAT to the evolution of co-operative behaviour was discovered in a very unusual way, through a worldwide computer competition to find the winning strategy for the well known paradox 'The Prisoner's Dilemma'. In 1981 TIT FOR TAT won that competition, and ever since then it has grown in stature to where it now dominates our thinking about the evolution of co-operative behaviour in animal and human societies.