Overnight Student — AI Tutoring, Flipped Overnight Student (LearnByTeaching.ai) turns passive studying into active mastery by putting students on the other side of the whiteboard. Instead of re-reading notes or grinding flashcards, users upload their study material and teach it — out loud — to AI students who ask real follow-up questions, push back on vague answers, and expose knowledge gaps in real time. The core insight: teaching is the most effective way to learn. Overnight Student operatio