Hamilton's unbeatable strategy was refined by John Maynard Smith and George R. Price (1973) into their concept of the evolutionarily stable strategy, i.e. one which cannot be invaded by a mutant strategy.
漢彌爾頓的unbeatable strategy被John Maynard Smith和George R. Price (1973) 提炼成进化稳定策略的概念，即一个不能被任何变异策略攻陷的策略。