
Day 10: Duolingo’s Adaptive Learning Engine Welcome to Tech Slay or Tech Fail — diving into jaw-dropping wins and epic fails in tech. Duolingo runs 20M+ A/B tests DAILY. Every lesson, reminder, and push notification is part of a massive experimentation framework. They use data pipelines, Bayesian optimization, and in-app instrumentation to test how YOU learn best. So yes, it teaches you. But also — learns you. TECH SLAY [keywords: duolingo, a/b testing, adaptive learning, edtech, user behavior, bayesian testing, experimentation platform, push personalization, language learning, tech slay]
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