Guy Longworth

I explore one apparent source of conflict between our naïve view of grammatical properties and the best available scientific view of grammatical properties. That source is the modal dependence of the range of naïve, or manifest, grammatical properties that is available to a speaker upon the configurations and operations of their internal systems—that is, upon scientific grammatical properties. Modal dependence underwrites the possibility of conflicting grammatical appearances. In response to that possibility, I outline a compatibilist strategy, according to which the range of grammatical properties accessible to a speaker is dependent upon their cognitive apparatus, but the properties so accessible are also mind-independent.

I discuss the conjecture that understanding what is said in an utterance is to be modelled as knowing what is said in that utterance. My main aim is to present a number of alter- native models, as a prophylactic against premature acceptance of the conjecture as the only game in town. I also offer preliminary assessments of each of the models, including the propositional knowledge model, in part by considering their respective capacities to sub-serve the transmission of knowledge through testimony. In each case, the preliminary assessment is unfavourable. I end by very briefly sketching an additional model as an object for future consideration.

Cooperation threatens to become rationally problematic insofar as the following conditions hold: reliance has a worst outcome—we rely and the other proves unreliable; the interaction is one-off; and we are ignorant of the other’s particular motivations but recognize a general motivation to be unreliable. The problem is that the satisfaction of these conditions is commonplace. Thus cooperation should be much less common than it in fact is. So what explains it? This chapter considers and rejects various game-theoretical solutions before canvassing a ‘trust-based’ solution. According to this solution the problem is dissolved once one recognizes how trust itself can give reasons for cooperating.

What is the epistemological role of speech perception in comprehension? More precisely, what is its role in episodes or states of comprehension able to mediate the communication of knowledge? One answer, developed in recent work by Tyler Burge, has it that its role may be limited to triggering mobilizations of the understanding. I argue that, while there is much to be said for such a view, it should not be accepted. I present an alternative account, on which episodes of comprehension are better able to underwrite the interpersonal transmission of knowledge