I-language

The term "I-language" refers to an internal, individual, and intensional language, as described by a grammar. This concept is central to the linguistic theories of Noam Chomsky, who proposed that humans possess an innate faculty for language acquisition. This innate ability allows children to learn a language, typically the one they are exposed to from infancy, by internalizing its rules and structures.12

Language acquisition is a fundamental aspect of linguistics, with children learning to speak before they learn to write. While physiological differences influence voice quality and pitch, they do not impede the ability to learn any language. The study of language acquisition emphasizes the inherent grammar-building capacity of the human brain, activated by exposure to language, rather than solely through imitation. This innate faculty is considered species-specific to humans, distinguishing them from other animals whose communication systems are far less complex.21