@jwcph @paco the scary thing: touchscreens are becoming more common even in modern commercial aviation, which is usually the gold standard of understanding human factors

(moving the reply down here because this is really a better message to attach it to)

@jwcph @paco Oh, there's been more than a few aircraft types where the initial designs caused the pilot to grab one control and mistake it for another. IIRC the Bristol Blenheim had three identical hydraulic valves to activate the undercarriage, flaps, and gun turret (it couldn't power more than one of those system at a time), which were "conveniently located behind the pilot's elbow". And the Airbus A320 models has four knobs to operate the autopilot, which today have distinctive shapes - the early models they were similar shapes and there were some crashes where the pilot turned the wrong one