CIRCØ Lab — Language Immersion Research & Methods

Welcome to CIRCØ Lab: field notes, Second Language Acquisition (SLA) research breakdowns, and practical workflows for building real-world fluency while reading books, comics, and watching subtitled video in CIRCØ.

Featured Research & Protocols

November 5, 2026 · SLA Research · Subtitles · 8 min read

Reversed Subtitling: How to Rapidly Expand Vocabulary While Watching Native Shows

Why watching shows, news, and lectures in your native audio (L1) with target-language subtitles (L2) activates the brain's Translation Equivalent Matrix — and how to pair it with CIRCØ's Read-Along sidecar, Netflix & Prime Video extension, on-demand YouTube captions, and subtitle mask controls without burning out your daily immersion streak.

Read the full study & workflow →

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