FCeng84, re #36.
Post #34 seeks to explain the question about the apparent inability to control pitch (#1), but without involving additional system failures; Occam’s Razor, etc.
In addition, the view based on control displacement was in part to separate the discussion from thread drifts into ‘force’ control input, and also better relate to the piloting problems of flying degraded aircraft.
As such, repeating your quote on jammed controls was inappropriate and misplaced; sorry, #34 edited.
However, are the comments in #34 sufficiently correct from an engineering / design viewpoint, and would these apply to the 737 ?
Re STS, MCAS, thanks again; repetition is a necessary burden in open forums.