YouTube Lecture Q&A Search Engine

Students and learners waste time scrubbing through hour-long lectures to find specific explanations. An AI-powered tool that transcribes educational videos (Stanford lectures, AI tutorials) and lets users ask questions to get timestamped answers would save researchers and students significant time.

Demand for searchable video content is real, but YouTube already rolled out its own AI-powered "Ask" feature and timestamps generated from auto-chapters, which directly undercuts the core pitch. The remaining gap is narrow — institutions with proprietary video libraries or learners who need cross-video search across a curated corpus — but that's a much smaller addressable market than "students everywhere." At $500–2k/month, you'd need dozens of paying subscribers, which is achievable only if you charge institutions rather than individuals, since students rarely pay for study tools. The most likely failure mode is distribution: getting enough traffic from students or universities to matter before a browser extension or YouTube itself closes the remaining gap entirely.