Why order
The discretionary failure mode is resequencing, not skipping.
Operators rarely omit a check outright — they reorder, putting the exciting question first and the sobering ones after commitment. Once the setup has been admired and the entry mentally taken, the sizing and fee questions arrive as obstacles to a decision already made rather than as inputs to one. A fixed sequence makes the sober questions structurally unskippable by putting them where they still have standing. Note where the checklist places Setup: fourth, after market conditions, system authority, and regime have all cleared. The thing the operator is most eager to evaluate is deliberately not first.
From the architecture manual's checklist table. Position is sequence, not importance — but the placement of Setup at position four is doctrinal: conditions and authority are established before the setup is allowed to make its case.

