But, if you don’t go the design sprint route when creating your prototype, which includes heavy user research before diving into design, you can easily become stuck trying to solve a problem you don’t yet understand. Prototypes don’t make sense when you need to validate the problem. In this case, you’re spinning your wheels creating shiny designs that look great but don’t help you to learn what you need to learn. That’s why you need to focus on exploring the problem before any solution activities.