The entrepreneur who develops the next killer technology in his garage is often surprised to find that the world isn’t beating a path to his door. Success takes years of hard work and so many revisions to the original idea that it’s barely recognizable by the time it gets to market. It’s not enough to just imagine the future. To bring an idea to fruition we must struggle with the uncompromising realities of the physical world. We need not only knowledge but also tenacity. Dopamine, the chemical of future success, is there to deliver.