11 min read
Scientifically proven mental models for learning a language
Not tricks or hacks — the handful of research-backed principles that govern how any human brain turns a foreign language into long-term, usable knowledge.
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Articles
Evidence-grounded writing on how learning a language actually works — reasoning from the cognitive science of how the brain acquires a language, not from what other apps do. Every claim is sourced.
10 min read
How AI is reinventing the way we learn a language
The real shifts — not the marketing. Where AI removes the genuine bottlenecks in language learning, where it is overhyped, and where it can quietly make you worse.
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How to study for the JLPT — the evidence-based way
The JLPT is the textbook case for spaced repetition: a fixed syllabus and a hard deadline. Here is how to use the learning science to pass it — and where flashcards stop and input has to take over.
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How to study for the TOPIK — the evidence-based way
The TOPIK pairs a largely fixed body of vocabulary and grammar with a fixed test date — the two conditions spaced repetition was built for. Here is how to use the learning science to pass it, and where flashcards stop and Korean input has to take over.
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How to study for the HSK — the evidence-based way
The HSK is the rare exam that publishes its exact vocabulary list — the cleanest possible target for spaced repetition. Here is how to use the learning science to pass it, and where flashcards stop and Chinese input has to take over.
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How to study for a CEFR exam — the evidence-based way
DELE, DELF, Goethe, CILS and their cousins all test the same CEFR ladder (A1→C2) against a published can-do syllabus on a fixed date — the two conditions spaced repetition was built for. Here is how to use the learning science to pass one, and where flashcards stop and real input and output take over.
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