This is a fundamental misunderstanding of what creativity is. Read "Serious Creativity" to dissolve the idea that creativity and craziness are related. (It's actually an optimization and search process -- and as per the Sequences, you can't improve such a process much by adding randomness to it. That is, above a certain small level of randomness, you won't be making things better, compared to changing the higher-level processes as per Serious Creativity. SC's author offers a proper reductionist explanation of creativity, at the, "AI people wanting to implement creativity should read this" level.)