Solipsism and the Solitary Language User

A person skeptical about other minds supposes it is possible in principle that there are no minds other than his. A person skeptical about an external world thinks it is possible there is no world external to him. Some philosophers think a person can refute the skeptic and prove that his world is not the solitary scenario the skeptic supposes might be realized. In this paper I examine one argument that some people think refutes solipsism. The argument, from Wittgenstein, is grounded in a thesis about language. Some people believe that in using language a person necessarily is linked to persons other than himself. Some people think a person can use the ‘communalist’ principle to refute forms of solipsism. I show that people do not refute solipsism with the Wittgensteinian, language-necessarily-is-shared principle.