Donald Davidson used triangulation to do everything from explicate psychological and semantic externalism, to attack relativism and skepticism, to propose conditions necessary for thought and talk. At one point Davidson tried to bring order to these remarks by identifying three kinds of triangulation, each operative in a different situation. Here I take seriously Davidson’s talk of triangular situations and extend it. I start by describing Davidson’s situations. Next I establish the surprising result that considerations from one situation entail the possibility (...) that at any one time one language is partially untranslatable into another. Because the possibility is time-indexed, it need not conflict with Davidson’s own argument against the possibility of untranslatability. I derive the result, not to indict Davidson, but to propose a new kind of triangulation, the reconciliation of untranslatability, which I investigate. Insofar as triangulation is central to Davidson’s views, getting a handle on his various triangular situations is key to getting a handle on his contributions to philosophy. Insofar as those contributions have enriched our understanding of how language, thought, and reality interrelate, extending Davidson’s model promises to extend our understanding too. (shrink)

Donald Davidson contributed more deeply to our understanding of language, thought, and reality than perhaps any other recent philosopher. His discussions of skepticism are sometimes seen as peripheral to those contributions. As I read him, Davidson argued against three skeptical worries. First, beliefs are true or false relative to a conceptual scheme. Second, beliefs generally are false. Third, other minds and an external world do not exist. Call those worries ‘conceptual relativism’, ‘falsidicalism’, and ‘solipsism’, respectively. I investigate how Davidson’s arguments (...) are connected. I then show that those connections are so systematic that Davidson ultimately offers a single, master argument with two premises. Premise one is that I think. Premise two is an application of his account of radical interpretation. Focusing on the systematicity of Davidson’s anti-skeptical arguments demonstrates that discussions of skepticism were more central to his views than often appreciated and shines fresh light on his project overall. (shrink)

According to Davidson, 'triangulation' is necessary both to fix the meanings of one's thoughts and utterances and to have the concept of objectivity, both of which are necessary for thinking and talking at all. Against these claims, it has been objected that neither meaning-determination nor possession of the concept of objectivity requires triangulation; nor does the ability to think and talk require possession of the concept of objectivity. But this overlooks the important connection between the tasks that triangulation is meant (...) to perform. One cannot fix concepts or meanings, which one must do for there to be any concepts or meanings at all, without having the concept of objectivity. (shrink)