Second language acquisition theory, developed through Krashen, Vygotsky, and their successors, distinguishes between acquisition (unconscious naturalistic development through meaningful input) and learning (conscious rule-focused study) — and establishes that acquisition is primary and more powerful. The comprehensible input hypothesis holds that language develops through exposure to material just beyond current competence — Vygotsky's zone of proximal development applied to language. These findings have profound implications not only for language pedagogy but for the design of any learning environment.
Patan