These guys literally dropped a masterclass on the basics of technical AI: 3:22 - How LLMs actually work 5:24 - What temperature is 7:05 - What context windows are 7:59 - Building a tool from scratch 10:28 - Why MCP exists 12:03 - What makes an agent an agent 12:43 - The power of skills 16:47 - What LangChain does 20:50 - How RAG kills hallucinations 23:36 - When you don't need a framework 25:26 - How routing works 28:34 - Why routers save millions 31:35 - Mock interview: LLM or ML? 35:50 - Why…