From extortion t0 generosity evolution In the iterated prisoner's dilemma. Proc Nati Aced Sri USA 110:15348-15353. 41. Reiter 1G, Hilbe C. Rand DG, Chatterlee K. Nowak MA 2018) Crosstalk in concurrent repeated games impedeseked reciprocityand requires stronger levels of forgiveness. Nat Common 9:555. 42. Mb. C, lims