M Causal mechanisms

What makes a process escape its original script?

Not mystery. Mechanisms: observable processes that change incentives, expectations, relationships, capacities, and the set of plausible next moves.

Mechanisms8core pathways
01

Recursive feedback

Every move rewrites the next decision environment.

A demonstration changes policing. Policing changes public interpretation. Public interpretation changes turnout, elite positioning, media attention, and foreign reaction. Those changes then alter what authorities and organizers do next.

Unprogrammability rises when these feedback loops are fast, tightly coupled, and difficult for any actor to model completely.

02

Preference revelation

Private beliefs become public information.

People often make decisions under uncertainty about what others believe, how many others will participate, whether institutions will enforce orders, and how costly dissent will be.

Visible participation, elite defections, institutional refusals, and public statements can reveal information that changes perceived risk. Cascades can then occur faster than prior public behavior would suggest.

03

Coalition heterogeneity

Breadth creates capacity—and disagreement.

Coalitions can unite actors who share a short-term objective but differ over ideology, tactics, leadership, constitutional design, economic policy, identity, foreign relations, or post-crisis governance.

That diversity can make a coalition harder to isolate while simultaneously making its future direction harder to coordinate.

04

Strategic adaptation

Actors learn because opponents learn.

Movements adapt to repression, surveillance, legal restrictions, messaging failures, and organizational vulnerabilities. States adapt to mobilization, international pressure, elite disunity, and prior policing outcomes.

The object being analyzed is therefore moving while it is being observed.

05

Network acceleration

Communication can scale faster than organization.

Networked media can compress the time between observation, interpretation, and action. Large-scale attention can emerge without equivalent growth in durable organizational capacity.

This creates a crucial distinction: mobilization capacity is not the same as governance capacity.

06

Institutional permeability

Organizations stop behaving as single actors.

Courts, parties, ministries, firms, unions, police agencies, military units, and media institutions contain people with different incentives and loyalties. Under pressure, internal differences can become politically consequential.

Once an institution can split, refuse, defect, reinterpret orders, or bargain independently, central plans lose reach.

07

External coupling

The relevant system may extend beyond the state.

Foreign governments, diasporas, sanctions, wars, market shocks, external security support, international media, aid, and cross-border networks can materially reshape domestic incentives.

External actors add resources and constraints, but also additional decision centers that no domestic actor fully controls.

08

Path dependence

Early contingencies become later structure.

An arrest, refusal, killing, court ruling, leak, speech, defection, negotiation, or organizational split can change later possibilities out of proportion to its apparent size at the time.

Unprogrammability does not mean history lacks structure. It means structure can be produced through sequences that were not fully foreseeable in advance.

Mechanisms interact

The strongest explanations combine pathways.

Repression × legitimacy

Coercion may deter, fragment, radicalize, isolate, or backfire depending on audience interpretation, institutional credibility, selectivity, and organizational resilience.

Defection × information

A single visible institutional defection can matter not only materially but informationally, changing beliefs about what others may do.

Networks × organization

Fast communication can produce scale without durable coordination; slower organizations may have less reach but greater capacity to negotiate or govern.

Coalition breadth × the day after

A broad anti-status-quo coalition may coordinate on removal while disagreeing sharply over replacement institutions.

Next

Mechanisms operate through institutions.

To understand unprogrammability, stop treating “the state,” “the movement,” or “the public” as single actors.

Study institutional fracture