Agency Sector
The Agency Sector is the full subcategory of the Life Loop Class with π-winding dominant — the sector that acts: spatial displacement that carries the τ-distinction with it. Its biological archetype is Bacteria; its diagnostic is motility coupled to chemotaxis or phototaxis.
τ-Definition
The Agency Sector is the full subcategory of the Life Loop Class with π-winding dominant — the sector that acts: spatial displacement that carries the τ-distinction with it. Its biological archetype is Bacteria; its diagnostic is motility coupled to chemotaxis or phototaxis.
Categorical invariant. Full subcategory of Loop_L with dominant π-winding number; π-base of the sector decomposition; pairs with VI.D17 as base and VI.D29 as realized sector.
Primary registry anchor:
VI.D29
τ-Derivation Chain
Empirical Correlate
Biomarker: Bacteria with motility apparatus: flagellated (E. coli, Salmonella, Vibrio), gliding (Myxococcus), spirochaete (Treponema), magnetotactic (Magnetospirillum). Diagnostic: chemotaxis or phototaxis coupling — motion biased by an environmental gradient, not random walk.
Measurable range: Swim speeds: 10-200 μm/s (most flagellated bacteria), up to 600 μm/s (Bdellovibrio); run-tumble bias coefficient: 0.05-0.5 toward attractant; flagellar rotation rate: ~100 Hz (E. coli) to ~1700 Hz (Vibrio); motor torque: ~1300 pN·nm; ATP cost of motility: ~0.1% of metabolic budget at 200 μm/s.
Observation method: Light-microscopy tracking; motility plate assays (soft agar); chemotactic capillary assays (Adler-style); high-speed bead-tethering for flagellar motor characterization; FRAP for membrane chemoreceptor clustering; cryo-electron tomography for motor structure.
Calibration anchor: LG-Y02-kinetic-pseudoscalar-channel
Anchor chain:
- VI.D29 Agency Sector — π-dominant winding
- VI.R10 Bacteria as agency archetype
- K_χ universality — bacterial chemotaxis machinery is built from L-amino-acid proteins
Manuscript reference: manuscript-sources/book-06/part04
Lean Coverage
Status: Planned