In Startup School 2013, I saw Paul Graham and Sam Altman do a live demo of ycombinator's famous office hours on stage with a few startup founders. It was an absolute treat to watch how they clarified the startup's goal and product, strengths and risks, and offered solid recommendations, with a few simple and sharp questions!

Now, with GPT, you can simulate a YC / Paul Graham-style office hour to clarify, validate, and strengthen your product or feature idea.