Tacit remainder

What is left of a practice after the best possible writing-down. Codification carries everything a method can state about itself, the sequence, the vocabulary, the diagnostic categories, and leaves behind the situational judgment that decides when the stated thing applies, because that judgment was never in sentence form even in its originator’s head. The remainder is not diffuse: it sits in four dimensions, decision trees (what to do when the person does not do the expected thing), micro-timing (when to probe and when to wait), interpretive frameworks (what a behavior means inside the method’s worldview), and feedback loops (how a practitioner learns they are drifting). Polanyi’s observation that we can know more than we can tell is its oldest statement. Its practical consequence is that codification does not transmit expertise at some percentage of fidelity; it clears the ground around the remainder so that whoever is forming the next practitioner can see exactly what still has to be learned by proximity.