Yes. Word of mouth should be enough. If people have a real problem they know about they go actively searching for a solution to the problem. Otherwise, despite

Yes. Word of mouth should be enough. If people have a real problem they know about they go actively searching for a solution to the problem. Otherwise, despite what you claim, I doubt your discovery is really that helpful. For instance if people contract HIV and know that they have HIV because free health care, then their doctor will tell them about it. The doctor is well informed through word of mouth in the doctor community should give them some advice that should include information about your product. That happens without any explicit marketing. Same with a lot of other things. Before the invention of mass media and modern marketing there was still marketing, but it was not mass media, and it was more implicit than explicit. It was more organic. That's really all that you are hoping for... nothing more than that. Marketing is natural. Mass media is not.