According to 2014 Nobel-prize physicist Shuji Nakamura, when asked “Why did you succeed with the blue LED when others failed?”
Nobody thought that gallium nitride would work. So it was a really crazy thing to pick gallium nitride. Luckily, it worked. The most important thing in science and technology is to take risks, like gambling in a way.
According to Nathaniel Branden in The Six Pillars of Self-Esteem
That which we call “genius” has a great deal to do with independence, courage, and daring — a great deal to do with nerve. This is one reason we admire it. In the literal sense, such “nerve” cannot be taught; but we can support the process by which it is learned. If human happiness, well-being, and progress are our goals, it is a trait we must strive to nurture — in our child-rearing practices, in our schools, in our organizations, and first of all in ourselves.