1987年，阿克塞尔·罗德通过设定一套系统拓展了这个电脑游戏。在系统里，有一小群程序玩家执行随机产生的“囚徒困境”策略。

In 1987, Axelrod extended the computerization of the game by setting up a system in which small populations of programs played randomly generated Prisoner's Dilemma strategies.

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然而德西奥里和他的同事们并不这么认为。 他们觉得事实上人们是基于可能会受到的来自他人的评价，策略地决定了应该怎么做。

But DeScioli and his colleagues suspected otherwise; they thought people were actually making a strategic decision about how to act based on how someone else might judge them.

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