The Knowledge Project Podcast TranscriptsBill Gurley: Mental Models That Change How You Think Shane Parrish: What are the key mental models that you keep coming back to that sort of explain how the world works to you? Bill Gurley: I’m a big believer in systems thinking. There’s a book called Thinking in Systems that I read. Members Only content. If you have an account, log in here to access content and your subscription settings. Not a member? Join Us.