Pretotyping is a method of validating a new product idea by creating extremely simplified versions, or "pretypes", of the product to test core features, user experience, and gather early feedback with minimal time and investment. This helps determine if the product addresses a real market need before fully developing it. Pretotypes can take many forms from paper mockups to basic digital prototypes to test aspects like usability, desirability, and whether users will actually use and continue using the product. The goal is to avoid spending large sums on products that ultimately fail due to lack of market fit or appeal.