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We built 6 different ways to learn the same physics topic (heat & thermal energy). Here they all are: 1. Read -- interactive guide with thought experiments 2. Quiz -- test your intuitions with XP and confetti 3. AI Quiz -- chat-powered quiz with Gemini, instant feedback 4. Ask AI -- Socratic physics tutor (free-form chat) 5. Talk -- voice conversation via ElevenLabs 6. MCP Quiz -- take the quiz inside Claude Code via Model Context Protocol The MCP one is the weird flex. Instead of opening a browser, you install an MCP server and quiz cards render directly in Claude. Your answers flow back into the conversation. No web page needed. Why 6 modalities? Because people learn differently, and the best way to test that hypothesis is to build all of them and see what sticks. Try it: https://learnvibecoding.vercel.app/physicsdemo