David Joyner recently wrote about his experience of creating a course with an AI avatar. He mentioned the advantages of being able to quickly and easily update course videos using AI rather than having to go to the recording studio and re-record and edit sections of videos. He also mentioned the drawbacks of uncontrolled use of AI to mimic real people. Having taken over 200 online courses, I decided to try Foundations of Generative AI. I wanted to compare the experience from a learner’s perspe

TL;DR Duolingo is targeting 100 million DAUs by 2028. It took the company 13 years to get its first 50 million DAUs. The new strategy includes more AI features for free users, deeper language courses, and growth of Chess, Math, and Music. But the strategy sacrifices short-term growth for long-term results, and von Ahn is calling 2026 its investment year without significant results.   It took Duolingo 13 years to get 50 million DAUs. CEO Luis von Ahn wants to double it in three years. For yea

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In 2025, Harvard CS50 offers 10 free certificate courses on topics such as computer science, Python, and AI.