BL-DUAL
Bottom-Left Duality
Class: Matter
Domain: EMS Semaphore
Function: Distinguishes machine geometry from expressive posture prior to action.
1. The Two Bottom-Lefts
BLᴹ — Machine Bottom-Left
GUI-defined coordinate.
Device-contingent.
Ephemeral.
Orientational only.
No authority over posture.
BLᴱ — Expressive Bottom-Left
Constitutional posture of admissibility.
User-anchored.
Portable across surfaces.
Governs stance.
Supersedes geometry.
2. Matter Rule
BLᴱ is authoritative.
BLᴹ is informational.
Geometry may assist orientation.
It may not determine stance.
3. Invariant
“Meet me at the bottom-left.”
Interpretation:
“Meet” → align orientation.
“Bottom-left” → BLᴱ unless explicitly constrained to geometry.
Device location is irrelevant.
4. Binding Condition
When BLᴹ and BLᴱ diverge,
posture prevails over placement.