Entrepreneurship - Is Your Idea Really Bad?

When do you know that your idea is wrong? Did a part of you think maybe they're right? I've worked on a lot of ideas that were really bad. You just haven't heard of them because they never went anywhere. And so I think it really takes being what I would say in the gym of entrepreneurship where you're just trying things and it doesn't matter for pans out or not. It's just about going through the process.