Troubles with the evolutionary theory of self-deception

The evolutionary biologist Robert Trivers was the first to address the well-known psychological phenomenon of self-deception from the standpoint of natural science. According to Trivers, self-deception evolved as an offensive strategy in the evolutionary arms race between the deceiver and the deceived. Though apparently both tenable and plausible, Trivers? evolutionary theory of self-deception, which takes the enhancement of interpersonal deception as the proper function of self-deception, is burdened with the number of difficulties. In this paper, I will argue that it is conceptually impossible for self-deceivers to deceive others about false beliefs they have falsely acquired as if they were true. If interpersonal deception is the conceptual impossibility for self-deceivers, then interpersonal deception cannot be the proper function of self-deception.