A Rust library built for psychological and behavioral simulation.

Computational models for systems you can't fully observe. Behavioral Pathways is a research organization building tools for psychological and behavioral simulation. We develop inference engines grounded in established theory and empirical research, designed for researchers, AI developers, and simulation engineers who need rigorous behavioral modeling.

Abstract state field visualization showing layered contours and decay bands
Diagram showing entities and events flowing through StateValue to produce a time query

The Problem and Our Approach

Human behavior is like weather: pattern analysis at scale, physics at the micro level. But behavioral systems face fundamental limits - the state is unknowable, even if known it is intractable, and there is no deterministic ground truth to converge on.

Our Rust library treats psychology as a queryable computation. You provide entities, events, and timestamps. We compute state at any point in time. Every psychological dimension - mood, personality, trust, needs - uses the same StateValue abstraction: stable tendency plus temporary deviations that decay over time.

Learn about the hard problem and who we are · See how we model behavioral state

See It In Action

Walk through complete simulation examples showing how personality traits influence trust decisions and how mood changes after life events.

Network graph illustrating trust signals between agents

Trust Decisions

How personality shapes willingness to trust others, with code showing entity creation, relationship modeling, and trust computation.

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Time series showing event impact and recovery decay curve

Emotional Recovery

How mood declines after negative events and recovers over time through the decay mechanism.

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Timeline workspace suggesting long-term personality change

Formative Events

How severe life events shift baseline traits permanently, with base shifts and settling curves.

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Risk monitoring workspace with triad convergence visuals

ITS Risk Monitoring

How TB, PB, and AC converge into risk alerts using the ITS monitoring pipeline.

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Event cards and branching pathways visualization

Multi-Pathway Events

How single events affect multiple ITS pathways (e.g., JobLoss → TB + PB).

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Architecture desk with JSON sheets and state blocks

State Hydration

Rebuild entities from saved state and replay events deterministically.

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What We Produce

Modular toolkit illustration representing the open-source library

Toolkit

Open-source Rust library for behavioral computation. Modular, embeddable, deterministic.

Research illustration with charts and papers

Opinion Papers

Opinion papers and simulation results exploring behavioral modeling, AI personality systems, and soft-science computation.

Who This Is For

  • Researcher iconResearchers studying agent-based models, social dynamics, or computational psychology
  • AI developer iconAI developers building agents that need persistent personality and emotional state
  • Simulation engineer iconSimulation engineers modeling human behavior in games, training systems, or policy analysis