qwertyuiop

The first typewriters had keys laid out in alphabetical order. Unfortunately, fast typists would get adjacent keys tangled when typing them in rapid succession. Seeking to separate common adjacent letters, Christopher Sholes devised the modern QWERTY layout.

Some people think that the QWERTY layout slows typists down, further ensuring that the keys won't get stuck. Arguably the arrangement would help in the two-fingered typing technique.