Ok, I see what you are saying now. We were just speaking past each other. I thought you were saying there is a formal definition of strong demand. Ie, there is

Ok, I see what you are saying now. We were just speaking past each other. I thought you were saying there is a formal definition of strong demand. Ie, there is a formal definition of demand, and a definition of "strong" in that context and thus a formal definition of strong demand. What you were saying is the definition of product market fit is having strong demand.