Extract and convert burned-in video subtitles to pinyin for learners

Extract and convert burned-in video subtitles to pinyin for learners targets a $1.2B = 8M active learners x $15/year. Assumes 8M language learners worldwide who regularly consume native video content and are addressable for low-cost freemium paid features. total addressable market with low saturation and a year-over-year growth rate of 15-25% - growth in self-directed language learning and video consumption.

Key trends driving demand: Short-form video growth -- more burned-in subtitles and immersive native content for learners increases addressable need.; Client-side ML and WebAssembly -- enables real-time OCR and conversion without server roundtrips or privacy tradeoffs.; Rise of independent learning workflows -- learners increasingly supplement courses with authentic media..