Hmm, well perhaps you recall the typewriter that was typical until the last few decades. If you jammed too many keys down you created “upstroke clashes” The Qwerty keyboard structure we use today was created to slow down the typist in order to avoid jammed keys. We still use the Qwerty keyboard today despite more efficient available concepts (Dvorak). Just found this interesting as so many of us are slaves to this gizmo.
SwittersB & Exploring 