The result of mentally manipulating the existing product is called a Virtual Product. Visualizing the virtual product is not a simple task, since it is initially not at all clear what its possible uses could be. This can very often create a sense of discomfort due to the feeling of uncertainty generated. This, however, is the very reason why FFF is so effective. Users are forced to genuinely try to figure out possible benefits – which often leads them to identify previously unidentified needs or audiences for new products.