The final piece to keep this analogy going is being in the arena with the right people. It's simple, human beings are memetic. We tend to imitate the behaviors of those we surround ourselves with. Imagine if air b amd bs founders had surrounded themselves with nay sayers and critics when having the seed of their idea. To be great at thinking of start up ideas, do not try to think of start up Ideas. This is actually probably the most dangerous way to build a business. If you have an idea that sounds plausible enough for you to spend years working on it, only to find out that no one wants the problem to be solved.