The principles of human language acquisition offer a universal blueprint for mastering any complex domain, including new languages, programming, and artificial intelligence. It provides a data-driven, psychologically informed, and technologically enhanced framework that guides learners from novice to expert by detailing learning timelines, the "universal grammar" of learning, the power of immersion, strategies to overcome psychological barriers with a "growth mandate," and the use of AI tools for practice, culminating in knowledge consolidation through teaching