There's a way to test your product on customers you don't have yet. Before you ship that landing page, that pricing, that feature list. Test it against the people who'd actually buy it. Don't have those people yet? Make the AI build them. Instead of guessing what people think, I let AI create the customers and run the focus group for me. It takes 30 seconds and it's scary accurate. Drop this into ChatGPT, Claude, or any LLM. Steal this prompt: "Here's what I'm working on: [e.g. a Chrome extension that organizes bookmarks with AI]. Here's what I want to test: [e.g. my landing page copy, my pricing tiers, my onboarding flow]. Build 5-10 realistic ideal customer profiles who would buy this. Then simulate each person's honest gut reaction. Rank the options. Then have them discuss it with each other like I'm not in the room to catch things individual reactions never surface." Your gut isn't a focus group.