Unreasonable entrepreneur is almost redundant. By definition entrepreneurs want to change the status quo, offering better products and services as substitutes for established and successful ones. This often requires an unreasonable amount of effort and persistence, sometimes to the point of stubbornness, in the face of not only opposition but also a concentrated lack of interest. The lukewarm response initially promises adoption until we realize it was the easiest way to get us to shut up. The challenge is not to become stubborn and parochial but to continue appreciate the realities of your prospect’s situation.