Abstract
Sophisticated dispositionalism proposes a naturalist reduction of mental content by claiming that
the semantic content of a mental symbol is determined by the causes of the occurrence of this
symbol under ideal conditions, i.e., conditions under which only the referent of a symbol can cause
its tokening. However, Paul Boghossian developed the open-endedness objection in order to show
that it is not possible to specify these ideal conditions in non-semantic terms, entailing that the
naturalist reduction of mental content proposed by sophisticated dispositionalism is not viable. My
goal in this paper is to argue that the open-endedness objection is flawed.