The document discusses different settings for language learning, including natural settings where one is exposed to a language through living somewhere it is spoken, and instructional settings where language is learned in a classroom. It argues that while natural settings provide abundant exposure and opportunities to use a language with proficient speakers, instructional settings provide more structured learning but limited access to the language. The document concludes that communicative-based instruction, which focuses on meaningful communication over grammatical forms, can help instructional settings better emulate the natural acquisition process.