Veneficus, yes yes yes. Ditto EMSLAW.
(BTW, anyone ever hear about a "slow trauma" question").
Cultural succession:
PHASE ONE: (Early formalized EMS): Experienced people identify problem, divide care into quanta/modules/chapters or routines to teach them to someone who has no experience (as was the goal in the early Seventies, to rapidly disseminate the info).
PHASE TWO: (The Eighties): people who underwent phase one who write the textbooks are either deskjockey EMS REMF's, or are trying to rectify errors they've seen, by reinforcing the separation and sequencing of skills/operations to allow studfents to get their heads around them.
RESULT: sort of like learning piano by mail. You may be a terror at scales, pedal and seventh diminished minor chords, but if yoj can't do them all at once, or insist on doling them one at a time, it isn't music.
There is an art. Science is taught and updated, art is learned and practiced.