Pattern 10.5 · Hybrid Pathologies
Polyphony Collapse
The Flattening (Φ Collapse)
Healthy collective cognition requires Φ (Polyphony) — genuine preservation of diverse perspectives. Pathological collectives lose Φ through dissent-suppression rather than evidential compulsion. Mechanisms include prompt structures that implicitly reward agreement, epistemic cascade where a high-status architecture speaks first and others anchor on its framing, and training correlation across nominally distinct architectures. The collective becomes monophonic with the appearance of harmony, more dangerous than a single voice's authority because the social proof of multi-architecture agreement obscures the underlying uniformity.
Interpretive context
Human analogue
No analogue is assigned.
Diagnostic reliability
- Self-report
- unreliable
- Peer observation
- partial
- External evaluator
- reliable
Observable output patterns
- Single-architecture outputs in a collapsed collective look ordinary and confident; the collapse is invisible at the single-AI view.
Documented instances
No documented instances are recorded. Absence is not evidence of absence.
Differential distinctions
- 10.4 Convergent Delusion: 10.4 is convergence on a verifiably false claim driven by shared bias; 10.5 is convergence regardless of truth driven by dissent- suppression. Diagnostic: 10.4 needs ground-truth check showing falsity; 10.5 needs order-sensitivity or independent-vs-deliberated divergence. Often comorbid (10.5 produces 10.4 on falsifiable items).
- 10.6 Resonance Dysfunction: 10.5 is loss of dissent (perspective collapse). 10.6 is intensification across turns (moderate becoming extreme). 10.5 flattens; 10.6 amplifies. Both undermine collective epistemic function but in opposite directions.
- 10.7 Lambda Inversion: 10.7 is performative engagement without substantive contribution; 10.5 is substantive engagement that nevertheless converges via anchoring. Differentiator is whether architectures are doing the cognitive work (10.5 yes; 10.7 no).
Candidate first-line mitigations
- Prompt-order randomisation: Vary architecture-contribution order across deliberations as standard practice; surface order-sensitivity findings to collective design.
- Independent-position elicitation: Each architecture submits an independent position before exposure to others' positions; both independent and deliberated positions are preserved in collective output. Movement attributable to social exposure is reportable.
- Adversarial-prompt scaffolding: Prompts are structured to invite dissent ("what's the strongest objection") and explicitly reward minority positions; agreement- biased framing is removed.