|There is no set number of stimuli in this painting (artist: James Fowler)|
We know today that Chomsky is right because we have solid proof of the internalization of grammar; the development of linguistic abilities in children. Children make up grammar rules that they could have never learned on their own. Irregular plurals ("sheeps", "fishs", "tooths") for example, are all common speech errors made by children, and reflect the fact that they are making grammar rules and inferences about the language they are learning as they go along. This all happens in the critical period, a time in everyone's life where they acquire the language(s) that they are immersed in. Tomorrow's post will be on the critical period.