Deliberate control is expensive to run. Accumulated wakefulness degrades exactly the functions a new routine depends on, while leaving old routines intact.
Novice
The hidden part#0321
A new routine runs on expensive machinery and the old one does not. Degrade the machinery and the old one returns unopposed.
Moderate pressure shifts control from deliberate evaluation towards practised response. That is efficient, and it also means whatever is practised gets installed faster.
Master
The hidden part#0320
Pressure does not build discipline. It transfers control to whatever is already practised, and it is indifferent to what that is.
An absence of stimulation is not a neutral state. It is an aversive signal that demands action, and the fastest available action is the one already practised.
Novice
The hidden part#0318
An empty interval is not neutral. It generates pressure to act, and the practised routine is the cheapest action available.
A remembered episode is not the sum of its moments. It is reconstructed from a peak and an ending, which is why how something finished governs whether it repeats.
Adept
The hidden part#0317
Adding an easy final stretch can make a harder session preferable. The summary is built from the end, not from the total.
Every description selects a level of detail, a boundary and a vocabulary. Choosing not to editorialise does not remove those choices, it conceals them.
Adept
The hidden part#0525
Neutral prose still picks the subject, the verb and the boundary. It is the most effective frame because it offers nothing to disagree with.