Prisoner's Dilemma

Through interesting interactive nature, visually demonstrate the concept of prisoner's dilemma and understand game theory. The exhibit consists of two person dueling jets, with selection buttons for "Super Jet" and "Gentle Jet" on the operating platform. The exhibit is a two person interactive exhibit, where visitors can conduct experiments on the prisoner's dilemma problem through two buttons: "Super Jet" and "Gentle Jet". Each visitor must choose a result, whether to have the other person's face sprayed vigorously or gently. If both players choose the Super Jet, then both will be heavily sprayed. In the repeated prisoner's dilemma, the game is repeatedly played. Therefore, each participant has the opportunity to 'punish' another participant for their uncooperative behavior in the previous round. At this point, cooperation may emerge as a balanced outcome. The motive for deception may be overcome by the threat of punishment, which may lead to a better, cooperative outcome. Target group: teenagers aged 6-15.

Interaction type: Interactive installation. The unit is designed for unsupervised public use: controls are recessed or shielded, moving parts are enclosed, and the interface is operable by a child of about six with no instruction. Where a screen is used, the language can be switched without changing the hardware, and the content can be replaced on site.

1. The origin of the prisoner's dilemma: The story of the prisoner's dilemma tells of two suspects who were caught by the police after committing a crime and held in different rooms for interrogation. The police know that the two are guilty, but lack sufficient evidence. The police told everyone: if both of them deny, they will each be sentenced to one year in prison; If both of them confess, each will be sentenced to eight years; If one person confesses and the other denies, the one who confesses will be released, and the one who denies will be sentenced to ten years. So, every prisoner is faced with two choices: confess or deny. However, regardless of what the accomplices choose, the optimal choice for each prisoner is to confess: if the accomplices deny and confess, they will be released, and if they deny, they will be sentenced to one year. Confession is better than not confessing at all; If the accomplice confesses and the person confesses, they will be sentenced to eight years. Compared to ten years for denial, confessing is still better than denying. As a result, both suspects chose to confess and were sentenced to eight years in prison each. If both of them deny, they will each be sentenced to one year in prison.