Generativism refers to the theory of language developed by Noam Chomsky and his followers. It holds that language is innate and that humans possess a language acquisition device. Chomsky argued against behaviorism, proposing that language is not acquired through stimulus-response conditioning alone. Generativism distinguishes between competence, one's innate linguistic knowledge, and performance, how language is produced and understood. It views language as rule-governed and creative. Generative grammar generates an infinite set of sentences from a finite set of rules. Generativism has significantly influenced the fields of linguistics, philosophy, psychology and other disciplines concerned with language.