C.27:10 - Rationale

The source contribution is the shift from “what is the speed?” to “what effort or input, over which windows, changes rate, rhythm, direction, or stability against what resistance and cost?”

C.27 adopts:

• the state, rate, and intervention-sensitive rate-change distinction;
• effort profiles over time rather than one acceleration word;
• braking, redirection, coasting, recovery, stabilization, and rhythm as legitimate working questions;
• interval-sensitive practice transfer, including the error introduced by copying static poses or rate words without the timing and effort pattern.

C.27 adapts physical vocabulary into authored-claim adequacy and direct FPF relations. It rejects literal force, mass, acceleration, rhythm, or second-order-process kinds, mandatory calculus, universal control theory, and automatic QL relevance.

The pattern is successful when it improves action quality more than paperwork and remains easier not to use than to misuse.