Schizophrenia made Terry A. Davis believe that God sent him on a mission to create an operating system for him. He had a monomaniacal obsession with programming. I believe he was able to program for fourteen hours straight daily. Nikola Tesla has to have been one of the most intelligent men who ever lived, but he was an absolute workaholic. He would study all day long and do nothing else for days on end. He never got bored, and he was so invested in his studies, that he believed missing a lecture was one of the worst things you could possibly do. His professors were concerned that he was destroying his health from studying so hard. When he was a little boy, he would light up candles, and stay up all night reading. He rarely ever slept. He was obsessive about learning everything. He could even speak eight languages. The man had over 300 patents.

Even if you had a genius-level IQ, it's unlikely that you'd be able to make massive achievements like those of Terry A. Davis and Nikola Tesla, because you'd simply become bored out of your mind. You wouldn't be able to make progress as quickly as he did, even if you'd be able to learn things more quickly than he was able to learn them, because you'd constantly be losing focus out of boredom, and would need to take brakes more frequently. I believe this is the case with most people who have made incredible achievements in STEM. It's a combination of high intelligence with monomania.