Good topic! I type extremely fast and accurately, because of the piano. Firstly, the super-fast reflexes you get from the piano. Then there is the mobility and dexterity of the fingers, for instance, I am currently typing with my left hand only, and it looks cool from here. I jump around a lot, but very effortlessly, I convserve energy, my fingers know what to do and they waste no more energy than is needed doing it. I hated typing classes in school, they were so strict about "hands stay in one place" and nonsense.