Phrase structure grammars as indicative of uniquely human thoughts

I argue that the ability to compute phrase structure grammars is indicative of a particular kind of thought. This type of thought that is only available to cognitive systems that have access to the computations that allow the generation and interpretation of the structural descriptions of phrase structure grammars. The study of phrase structure grammars, and formal language theory in general, is thus indispensable to studies of human cognition, for it makes explicit both the unique type of human thought and the underlying mechanisms in virtue of which this thought is made possible

The rights of persons and the rights of property

Mirvac chief executive Susan Lloyd-Hurwitz, not one usually associated with sympathy for tenants on the rental market, said earlier this year that ‘renting in Australia is generally a very miserable customer experience…the whole industry is set up to serve the owner not the tenant’ Her observation is basically correct and the solution she offers is to change the current situation where small investors, supported by generous government tax concessions, provide effectively all of the country’s private rental housing. Lloyd-Hurwitz wants Mirvac, a property group currently managing over $15 billion of assets, to become an apartment landlord that would own not one or several properties like small investors currently do but rather thousands of properties to rent out. The proposal is for Mirvac to build apartment blocks and then, instead of selling individual apartments, rent them out on long-term or indefinite leases. This build-to-rent housing scheme would of course make the real estate–investment company a great deal of money. At the same time it would do very little to alleviate the current housing crisis. Such schemes are a nonstarter for people who want the security, stability and independence of home ownership, which is a very Australian aspiration that is increasingly becoming unobtainable not only for those experiencing homelessness, but also for the poor and middle-class. Those of us who care about finding a real solution to the housing crisis would do well to consider how we got into this situation in the first place, and then consider how this might inform what we do next. The following then, traces some of the historical and philosophical roots of our understanding of property and their institutionalisation via various levels of government, especially in the Australian context

Language and scientific explanation: Where does semantics fit in?

This book discusses the two main construals of the explanatory goals of semantic theories. The first, externalist conception, understands semantic theories in terms of a hermeneutic and interpretive explanatory project. The second, internalist conception, understands semantic theories in terms of the psychological mechanisms in virtue of which meanings are generated. It is argued that a fruitful scientific explanation is one that aims to uncover the underlying mechanisms in virtue of which the observable phenomena are made possible, and that a scientific semantics should be doing just that. If this is the case, then a scientific semantics is unlikely to be externalist, for reasons having to do with the subject matter and form of externalist theories. It is argued that semantics construed hermeneutically is nevertheless a valuable explanatory project

Why should syntactic islands exist?

Sentences that are ungrammatical and yet intelligible are instances of what I call perfectly thinkable thoughts. I argue that the existence of perfectly thinkable thoughts is revealing in regard to the question of why syntactic islands should exist. If language is an instrument of thought as understood in the biolinguistics tradition, then a uniquely human subset of thoughts is generated in narrow syntax, which suggests that island constraints cannot be rooted in narrow syntax alone and thus must reflect interface conditions imposed on the output of the computational system and its mapping to external systems

Language and scientific explanation

This book discusses the two main construals of the explanatory goals of semantic theories. The first, externalist conception, understands semantic theories in terms of a hermeneutic and interpretive explanatory project. The second, internalist conception, understands semantic theories in terms of the psychological mechanisms in virtue of which meanings are generated. It is argued that a fruitful scientific explanation is one that aims to uncover the underlying mechanisms in virtue of which the observable phenomena are made possible, and that a scientific semantics should be doing just that. If this is the case, then a scientific semantics is unlikely to be externalist, for reasons having to do with the subject matter and form of externalist theories. It is argued that semantics construed hermeneutically is nevertheless a valuable explanatory project

Language as an instrument of thought

I show that there are good arguments and evidence to boot that support the language as an instrument of thought hypothesis. The underlying mechanisms of language, comprising of expressions structured hierarchically and recursively, provide a perspective (in the form of a conceptual structure) on the world, for it is only via language that certain perspectives are avail- able to us and to our thought processes. These mechanisms provide us with a uniquely human way of thinking and talking about the world that is different to the sort of thinking we share with other animals. If the primary function of language were communication then one would expect that the underlying mechanisms of language will be structured in a way that favours successful communication. I show that not only is this not the case, but that the underlying mechanisms of language are in fact structured in a way to maximise computational efficiency, even if it means causing communicative problems. Moreover, I discuss evidence from comparative, neuropatho- logical, developmental, and neuroscientific evidence that supports the claim that language is an instrument of thought

The creative aspect of language use and the implications for linguistic science

The creative aspect of language use provides a set of phenomena that a science of language must explain. It is the “central fact to which any signi- ficant linguistic theory must address itself” and thus “a theory of language that neglects this ‘creative’ aspect is of only marginal interest” (Chomsky 1964: 7–8). Therefore, the form and explanatory depth of linguistic science is restricted in accordance with this aspect of language. In this paper, the implications of the creative aspect of language use for a scientific theory of language will be discussed, noting the possible further implications for a science of the mind. It will be argued that a corollary of the creative aspect of language use is that a science of language can study the mechanisms that make language use possible, but that such a science cannot explain how these mechanisms enter into human action in the form of language use

Language and scientific explanation: where does semantics fit in?

The problem of intentionality is the problem of how some entities can be ‘about’ something. That is, sentences, thoughts, or symbols, among other things, display intentionality in that they are about something else; they are said to be a representation of something. This problem is usually framed in terms of the notion of meaning or content. What is the status of the meaning of a sentence over and above its formal and syntactic aspects? Within a scientific framework, what makes it the case that the word ‘teaspoon’ or the sentence ‘There is a flower in my coffee mug’ mean what they do? Is the meaning of an uttered word only dependent upon mind-internal properties? Or must we make use of mind-external factors such as the context of the utterance or the speaker’s social history in order to determine the meaning of an uttered word? Those who argue that the scientifically relevant (and tractable) properties that are involved in semantics are overwhelmingly, though not entirely, within the mind are referred to as Chomskyan internalists. On the other hand, externalists argue that there is something more to semantics than merely mind-internal events and their happenstance connection to the world: externalists insist that the meanings of our words (or sentences, or the contents of our thoughts, etc.) depend on some deep metaphysical (perhaps causal) connection between the mind and other worldly objects that are independent of the mind. Moreover, externalists insist that the truth or falsity of the meanings of our words must be an integral and explanatory part of a theory of semantics. In what follows I will examine the heated debate between externalists and Chomskyan internalists in regard to the correct way to construct a scientific theory of language, with particular emphasis on a scientific theory of semantics