Erratum: Corrigendum: Evolutionary instability of zero-determinant strategies demonstrates that winning is not everything

Corrigendum: Evolutionary instability of zero-determinant strategies demonstrates that winning is not everything

It has been drawn to our attention that the instability found here for zero determinant (ZD) strategies only applies to the set of coercive strategies we considered, which is a subset of all possible ZD strategies. In the Article, we pointed out that the set of ZD strategies investigated by Press and Dyson1 was not stable under Darwinian evolution. We speculated that the instability we noted wo...

Evolutionary instability of zero-determinant strategies demonstrates that winning is not everything

Zero-determinant strategies are a new class of probabilistic and conditional strategies that are able to unilaterally set the expected payoff of an opponent in iterated plays of the Prisoner's Dilemma irrespective of the opponent's strategy (coercive strategies), or else to set the ratio between the player's and their opponent's expected payoff (extortionate strategies). Here we show that zero-...

Winning isn’t everything: Evolutionary stability of Zero Determinant strategies

Zero Determinant (ZD) strategies are a new class of probabilistic and conditional strategies that are able to unilaterally set the expected payoff of an opponent in iterated plays of the Prisoner’s Dilemma irrespective of the opponent’s strategy, or else to set the ratio between a ZD player’s and their opponent’s expected payoff. Here we show that while ZD strategies are weakly dominant, they a...

Frontier Everything That is Not Important : Negative Databases

Undetectable serum calcidiol: not everything that glitters is gold

There is an increased awareness of the adverse consequences of nutritional vitamin D deficiency. We report a patient with chronic tophaceous gout, chronic kidney disease (CKD) Stage 3/4 and undetectable serum calcidiol who developed severe hypercalcaemia upon vitamin D supplementation despite serum 25(OH) vitamin D within the normal range. Upon recovery, serum 1,25(OH)2 vitamin D remained in th...