"But if I use some amount of concentration I can type without looking at the keyboard." A competent touch typist should be able to type with his eyes closed, a

"But if I use some amount of concentration I can type without looking at the keyboard." A competent touch typist should be able to type with his eyes closed, and without needing to concentrate at all. Typing becomes a reflex action, and you can concentrate on finding the right words, or on your code/problem itself.