I’m not sure about your distinction betwen transferrable and non-transferrable skills, or for that matter how much this comment affects the thrust of your post. But plenty of things can be taught, even though “the rational calculations and algorithms needed to perform it” are not “fully understood and documented”. Physical skills, for example: yoga, driving a car, sports of all sorts, the skills of drawing and painting. These things are learned not only by doing them, but by instruction and feedback from a teacher or coach.
ETA: Now, rationality skills, those seem to be a lot less transferrable than any of those I mentioned.
I’m not sure about your distinction betwen transferrable and non-transferrable skills, or for that matter how much this comment affects the thrust of your post. But plenty of things can be taught, even though “the rational calculations and algorithms needed to perform it” are not “fully understood and documented”. Physical skills, for example: yoga, driving a car, sports of all sorts, the skills of drawing and painting. These things are learned not only by doing them, but by instruction and feedback from a teacher or coach.
ETA: Now, rationality skills, those seem to be a lot less transferrable than any of those I mentioned.