The original typewriter (1870s) had arms that jammed if adjacent keys were struck too quickly. So Christopher Latham Sholes scrambled the letters. The result? A layout that forces common letter pairs (like "TH" or "ER") to be typed with different hands or non-adjacent fingers.
And now that you've read this feature, you will never be able to look at a keyboard without seeing it lurking there, waiting to be typed. mnbvcxzlkjhgfdsapoiuytrewq definition
And yet, it is also a of the keyboard's physical reality. If you trace the three rows from right to left, bottom to top, you end exactly where you started: at the letter q . The string begins with m (bottom row, rightmost) and ends with q (top row, leftmost). It is a journey across the entire keyboard. The original typewriter (1870s) had arms that jammed