Which innovative market research method did Duolingo CEO Luis von Ahn pioneer before founding the language learning platform?

In the world of linguistics and language products, market research plays a crucial role in understanding user needs and behavior. Companies invest millions to understand how people interact with language learning apps, translation services, and communication tools. This poll tests your knowledge about a groundbreaking market research technique that revolutionized how language product companies gather authentic user data.

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reCAPTCHA, which helped digitize books while gathering data on human language processing patterns
LinguaTrace, a browser extension that analyzed natural typing patterns to improve language keyboards
VerbVox, a voice analysis system that helped optimize pronunciation algorithms for language learners
SyntaxMap, a gamified survey tool that identified intuitive grammar patterns across different language speakers