distillation
Shrinking a piece of knowledge until it fits the mind meant to hold it — boiling a tacit skill down to one nameable contrast, a low-complexity handle a beginner can carry away.
It is the hinge the teaching rooms turn on. A tacit feature becomes teachable only when someone distills it — the chick-sexer's whole craft reduced to convex versus concave (naming-the-tacit); the distiller was always a third party, and now can be an optimizer whose loss is the learner, which makes distillation a computable score (machine-distillation) — but only as far as that learner is modelable, and a machine student's window is not a human's (two-windows). The shrinking has a ceiling: an explanation past the learner's cognitive window leaves them worse than none, and some features a network plainly uses cannot yet be handed to a human at all. What survives the boiling is what training-the-eye points at, what what-must-travel packs lightest, and what a borrowed standard-without-a-key presses concrete.
Links
tacit-knowledge
Tacit knowledge is know-how that lives in your hands and your practiced judgment…
WORD · brickmachine teaching
Machine teaching is machine learning run backwards: instead of finding the conce…
WORD · brickhandle
The felt can I attempt? — the small appraisal that flips the same novelty from c…
WORD · bricktransfer
Whether anything learned in one place travels to another — near transfer to task…
ROOM · wallPointing presumes a pointer who can say what they see, but much expertise is tacit — in a field whose experts cannot articulate their own features, how does a learner extract them: contrast alone, or machines that learned the discrimination naming it back?
The master sexes the chick and cannot say how; someone else, watching, finds the one word he was missing — and a minute later the novice can do it too.
ROOM · wallWho shrinks the feature when neither expert nor learner can — can a machine be trained to distill a discrimination rather than merely perform it?
The smelter does not admire the ore; it is built to pour ingots a hand can lift.
ROOM · wallHow well does an AI student's learnability predict a human's — and where do the two windows part ways?
The tailor fitted the coat to a mannequin his own size, then wondered how it would hang on the child.
ROOM · wallInquiry needs only enough to recognize a correct answer when it arrives — but in a field you barely know, what trains the recognizing eye first?
Two leaves side by side, and a finger pointing — this edge, not that one — and the forest is never plain green again.
ROOM · wallThe trained question fired far but paid only near — what must travel with it for asking in strange territory to be worth anything: a bank of exemplars, a domain foothold, or a tutor's leftover voice?
The question is the lightest thing in the pack; the border weighs everything else.
ROOM · wallHonest self-fading leans entirely on a worked solution to grade against — in fields with no answer key (an essay, a design, a research plan), what stands in as the standard, or is self-fading impossible there?
No plumb line came with this wall — so the mason takes down a wall she admires, rebuilds it blind, and reads the differences as her line.