Problems with variable properties in syntax

Abstract

Like those birds born to chirp, humans are born to parse; children are predisposed to assign linguistic structures to the amorphous externalization of the thoughts that we encounter. This yields a view of variable properties quite different from one based on parameters defined at Universal Grammar (UG). Our approach to language acquisition makes two contributions to Minimalist thinking. First, in accordance with general Minimalist goals, we minimize the pre-wired components of internal languages, dispensing with three separate, central entities: parameters, an evaluation metric for rating the generative capacity of grammars, and any independent parsing mechanism. Instead, children use their internal grammar to parse the ambient external language they experience. UG is “open,” consistent with what children learn through parsing. Second, our understanding of language acquisition yields a new view of variable properties, properties that occur only in certain languages. Under this open UG vision, specific elements of I-languages arise in response to new parses. Both external and internal languages play crucial, interacting roles: unstructured, amorphous external language is parsed and a structured internal language system results. My Born to parse (Lightfoot 2020) explores case studies that show innovative parses of external language shaping the history of languages. I discuss 1) how children learn through parsing, 2) the role of parsing at the two interfaces between syntactic structure and the externalization system (sound or sign) and logical form, 3) language change, and 4) variable linguistic properties seen through the lens of an open UG. This, in turn, yields a view of variable properties akin to that of evolutionary biologists working on Darwin’s finches; see section 7.

Keywords

• Open UG
• Parsing
• Parameters
• Internal Languages
• Minimalism