Sure, but that's not the whole story -- the OP would also need to be okay with changing the idea drastically where and when required. As other people have noted

Sure, but that's not the whole story -- the OP would also need to be okay with changing the idea drastically where and when required. As other people have noted in this thread, not much effort was made when talking to the doctors to find out what problem they do have, and no mention is made of ever even showing this product to consumers. The fatal flaw here was building a product "in secret" and not launching soon enough.