The Price of Twin Earth

Liberals about perceptual contents claim that perceptual experiences can represent kinds and specific, familiar individuals as such; they also claim that the representation of an individual or kind as such by a perceptual experience will be reflected in the phenomenal character of that experience. Conservatives always deny the latter and sometimes also the former claim. I argue that neither liberals nor conservatives have adequately appreciated how the content internalism/externalism debate bears on their views. I show that perceptual content internalism entails conservativism when conjoined with one other, extremely plausible premise. Hence, liberals are committed to perceptual contents externalism, yet they have failed to fully address the consequences that this has for their view. Moreover, the argument is easily adapted to perceptual experiences of Twin Earthable properties, like colour and shape. I use this last result to show why existing conservative arguments that appeal to Twin Earth plausibly overgeneralize.

Vehicles, contents and supervenience

In this paper, I provide an argument for the assumption that contents supervene on vehicles, which is based on the explanatory role of representations in the cognitive sciences. I then show that the supervenience thesis together with the explanatory role imply that the individuation criteria for contents and vehicles are tightly bound together, such that content internalism (externalism) is in effect equivalent to vehicle internalism (externalism). In the remainder of the paper, I argue that some of the different positions in the debate stem from different research questions, namely the question about the acquisition conditions and the question about the entertaining conditions for mental representation. Finally, I argue that the thesis of externalism is much more interesting if understood as a claim about how mental representation works in our world as opposed to how they work in all metaphysically possible worlds. In particular, I argue that this ?nomological? understanding of the thesis is able to explain how and why the experimental methods used in contemporary cognitive sciences are able to provide insight into behavior generation.

Un examen del trilema de Akeel Bilgrami desde el externismo social

ResumenEl propósito de este artículo es defender que el externismo social de Burge puede enfrentarse con éxito al trilema de Bilgrami, un argumento que pretende mostrar la incompatibilidad entre el externismo ortodoxo, dentro del cual figura el externismo de Burge, y el acceso privilegiado a los propios contenidos mentales. Además, pretendemos poner de manifiesto la existencia de ciertas tensiones en la versión del externismo defendida por Bilgrami.Palabras claveAtribuciones conceptuales, contenido psicológico, internismo, externismoAbstractThe aim of this paper is to defend that Burge’s social externalism can successfully face Bilgrami’s trilemma, an argument that intends to show the incompatibility between orthodox externalism, in which Burge’s externalism is featured, and the privileged access to our own mental contents. In addition, we mean to demonstrate the existence of certain tensions in Bilgrami’s view of externalism.Keywords Conceptual atributions, psychological content, internalism, externalism