LLMs are designed to always give you an answer. They never say "I don't know." Much like a manipulative salesperson, they'll always sound convincing, give you good explanations - but they can still be very, very wrong. I learned this testing AI for podcast editing. The first attempt worked okay. The second time, my client rejected it completely - the first time ever on this project. Here's what I learned about when AI helps and when it fails.