> the solution to the PD Dyson truly proposes a great solution lying in PD. That is a huge oversight for game theorists when they let an outsider do that. How

> the solution to the PD Dyson truly proposes a great solution lying in PD. That is a huge oversight for game theorists when they let an outsider do that. However, it's not the ultimate solution. It's an extremely interesting aspect (a strategy, a style of play) of the PD that game theorists somehow have never seen and articulated in maths. For the evolutionary fitness of the extortioner solution that Dyson discovers: Evolution of extortion in Iterated Prisoner’s Dilemma games http://www.pnas.org/content/110/17/6913.abstract http://www.pnas.org/content/110/17/6913.abstract