My 2 cents
If I remember my history of the typewriter correctly, the original mechanical design had the keys in alphabetical order. It wasn't long before typists became so adept and fast (bansai-ed?) that these early models kept jamming as the returning typebars could not get out of the way of subsequent type bars.
The QWERTY arrangement was designed specifically for left-handed people and since there weren't many left-handed typists (momof7's family notwithstanding), this forced the right-handers to slow down and reduce thr frequency of jamming.
"Great spirits have always encountered violent opposition from mediocre minds." ~ Albert Einstein