Recently I picked up Simpler Syntax in the library. It is a good read on a very complex topic, and I’m afraid that in this posting I am not going to do justice to the full breadth of the book. These are just some doubts that crept up while reading it.
Simpler Syntax, as far as I can see, combines the goods of various constructional approaches to language with a Universal Grammar (UG). But in the light of Tomasello’s Constructing a Language (2003), Goldberg’s Constructions (1995) and Constructions at Work (2006) and a host of other constructionalist-functionalist approaches, one wonders what would be the job of such a Universal Grammar. To this, Culicover and Jackendoff answer: ‘We conceive of UG as pre-specifying the highest, most general layer of the hierarchy. (…) Thus UG guides, but does not determine the course of language acquisition.’ (2005:40).
For Culicover & Jackendoff UG is a special piece of innate cognitive machinery guiding the course of language acquisition. It is an open question whether something like this is at all necessary in the construction-grammar type theories they happily adopt. I was a bit surprised that Culicover & Jackendoff’s argument for UG crucially hinges on the following assumption:
Relatively ‘core’ phenomena such as (30) are quite direct specializations of UG, and represent degrees of abstraction and generality that probably could not be achieved without the principles of UG as ‘goals’ or ‘attractors’ for the process of generalization. (p. 30)
So UG, they say, is there mainly to provide necessary ‘attractors’ for processes of generalization/abstraction. The question then becomes: what is the evidence that these degrees of abstraction and generality could not be achieved without UG? Isn’t there a chance that we are just chasing an epiphenomenon of ‘constructed language’ (Tomasello) — in other words, is it really true that we cannot come up with convincing explanations for the degrees of abstraction and generality achieved? Rather than a priori assuming something like that, it seems more profitable to try and see how far we can get without resorting to some language-specific system of principles that is hardwired into our constitution.