Did you know that the QWERTY keyboard was specifically designed to slow down the maximum typing speed, since hitting two keys in close sequence caused the mechanical letter bitties to lock up?
Nope, wrong. The Fable of the Keys explodes this myth, but is perhaps a bit long on the reading. A much shorter exposition of the piece was written by The Economist and is called “The QWERTY Myth.” You’d do well to make like the Perfect Master and learn the Straight Dope about QWERTY. 