Show and tell doesn't always work as he describes it. You can go out and meet with people and describe what you want to build. It might work or it might not.

Show and tell doesn't always work as he describes it. You can go out and meet with people and describe what you want to build. It might work or it might not. I've found it far more useful to meet with the target audience. Your sole goal is to find out if the problem exists and if its bad enough they're willing to pay to get it solved. The Mom Test book is invaluable because whether you get truthful information or not depends on how you ask the questions. Like a lot of things in startups asking the right questions is counterintuitive.