Energy Dynamics ACSet: Physics of Computational Skills
Trit: 0 (ERGODIC - bridges latent schema structure with active skill deployment)
Location: /Users/bob/ies/energy-dynamics-acset/
Version: 1.0 (Formal, following Patterson et al. 2022)
Status: Mathematical framework complete; ready for Plurigrid ASI integration
Overview
The Energy Dynamics ACSet integrates three complementary frameworks for measuring and composing computational skills through physics-motivated information theory:
Patterson, Lynch, Fairbanks (2022): Categorical Data Structures for Technical Computing
- ACsets as practical relational data structures
- Functorial data migration between schemas
- Slice category theory (Theorem 2) ensuring categorical limits/colimits
Matteo Capucci (2024): Organizing Physics with Open Energy-Driven Systems (arXiv:2404.16140)
- Symmetric monoidal categories of open systems
- Reaction structures: T*Q → TQ (cotangent-to-tangent transformations)
- Hamiltonian mechanics for systems with external energy sources
Sophie Libkind (2024+): Dynamical Systems Composition and Pendulum Dynamics
- Phase space trajectories for system states
- Compositional wiring of interaction networks
- Pendulum-like oscillation between latent and active modes
Core Insight
Skills in an ecosystem oscillate between:
- Latent Mode: High potential energy, low kinetic energy (schema-rich, inactive, storing capacity)
- Active Mode: High kinetic energy, low potential energy (actively deployed, dissipating, in interaction)
This oscillation is governed by Hamiltonian mechanics: total energy H = T + V is conserved along trajectories, even as kinetic and potential exchange.
Mathematical Schema
Formal Definition
@present TheoryEnergyDynamics(FreeSchema) begin
# S₀: Objects (combinatorial structure)
(Skill, EnergyFlow, DynamicalState, ReactionStructure, Trit, TimePoint)::Ob
# S₁: Morphisms (relational structure)
energy_source::Hom(EnergyFlow, Skill)
energy_sink::Hom(EnergyFlow, Skill)
current_state::Hom(Skill, DynamicalState)
next_state::Hom(DynamicalState, DynamicalState)
reaction::Hom(Skill, ReactionStructure)
time_step::Hom(DynamicalState, TimePoint)
trit_assignment::Hom(Skill, Trit)
# S₂: Attributes (immutable external data)
Float::AttrType
Int::AttrType
String::AttrType
# Kinetic energy attributes (interaction entropy signatures)
entropy_rate::Attr(EnergyFlow, Float) # dS/dt (dissipation rate)
interaction_degree::Attr(EnergyFlow, Int) # |concurrent_interactions|
bandwidth_utilization::Attr(EnergyFlow, Float) # % of capacity
# Potential energy attributes (schema representational richness)
schema_complexity::Attr(Skill, Float) # cyclomatic complexity
representational_depth::Attr(Skill, Int) # nesting in hierarchy
storage_footprint::Attr(Skill, Int) # bytes (resource awareness)
# Phase space coordinates
kinetic_energy::Attr(DynamicalState, Float) # T = (1/2)mv²
potential_energy::Attr(DynamicalState, Float) # V = mgh
hamiltonian::Attr(DynamicalState, Float) # H = T + V
# Capucci reaction structure (cotangent-to-tangent map)
cotangent_contribution::Attr(ReactionStructure, Float) # T*Q component
tangent_contribution::Attr(ReactionStructure, Float) # TQ component
reaction_rate::Attr(ReactionStructure, Float) # dq/dt coupling
# Temporal and categorical data
timestamp::Attr(TimePoint, Float)
trit_value::Attr(Trit, Int) # -1, 0, +1
trit_name::Attr(Trit, String) # "MINUS", "ERGODIC", "PLUS"
end
@acset_type EnergyDynamicsACSet(TheoryEnergyDynamics)
Key Property (Theorem 2, Patterson et al.)
The category AcsetᵈK is isomorphic to a slice category:
AcsetᵈK ≅ SetC / D
This ensures:
- ✓ All finite limits and colimits exist
- ✓ Geometric morphism to presheaf category
- ✓ Functorial operations on data migration between schemas
- ✓ Composition via structured cospans (open systems)
Energy Measurement Framework
Kinetic Information Energy
Definition: Energy dissipated at system boundary (current interaction rate)
K = entropy_rate × interaction_degree × bandwidth_utilization
Semantics:
entropy_rate(dS/dt): Information dissipation per unit time at boundaryinteraction_degree: Number of simultaneous concurrent interactionsbandwidth_utilization: Fraction of available capacity currently active
Interpretation: Higher K means skill is currently being exercised intensively.
Physical Analogy: (dS/dt) is entropy production in open thermodynamic system.
Potential Information Energy
Definition: Latent representational capacity stored in schema
V = schema_complexity × representational_depth
Semantics:
schema_complexity: Measure of structural richness (cyclomatic complexity, morphism count)representational_depth: Nesting levels in categorical hierarchy
Interpretation: Richer schemas enable more diverse future computations.
Physical Analogy: Height in gravitational field; complexity acts like mass.
Total Energy (Hamiltonian)
H = K + V = constant (along skill trajectories)
Conservation Law: Total information energy is preserved as skills oscillate between latent and active modes.
Implementation:
function is_energy_conserving(acset, state_id; tolerance=1e-6)
H = acset[state_id, :hamiltonian]
computed_H = acset[state_id, :kinetic_energy] + acset[state_id, :potential_energy]
return abs(H - computed_H) < tolerance
end
Resource Efficiency Metric
energy_density = K / storage_footprint (bits/byte/second)
Interpretation: Skills with high energy density should be prioritized for deployment.
Hamiltonian Dynamics for Skills
Pendulum Oscillation
A skill oscillates between two extremes:
Mode 1 (Latent): K ≈ 0.1, V ≈ 0.9 (top of swing)
Schema-rich, inactive, storing energy
Mode 2 (Active): K ≈ 0.9, V ≈ 0.1 (bottom of swing)
Actively deployed, high interaction, dissipating
Symplectic Integration
The reaction structure (Capucci) couples latent and active modes through reaction rate α:
function hamiltonian_dynamics_step(acset, state_id, dt)
T = acset[state_id, :kinetic_energy]
V = acset[state_id, :potential_energy]
H = acset[state_id, :hamiltonian]
# Get reaction structure for this skill's state
skill = acset[state_id, :current_state]
reaction_id = acset[skill, :reaction]
α = acset[reaction_id, :reaction_rate]
# Harmonic coupling: energy oscillates
# dT/dt = α(V - T), dV/dt = α(T - V)
dT = α * (V - T) * dt
dV = α * (T - V) * dt
return T + dT, V + dV, H # Hamiltonian stays constant!
end
Period Calculation
ω = sqrt(reaction_rate) (angular frequency)
T_period = 2π / ω (oscillation period)
Example: Skill with reaction_rate = 0.5 → ω = 0.707 rad/s → period ≈ 8.9 seconds
GF(3) Triadic Organization
The schema supports balanced triadic groups (GF(3) arithmetic):
MINUS (-1): dissipative, energy-sinking
ERGODIC (0): coordinating, energy-neutral
PLUS (+1): generative, energy-sourcing
Conservation Law
Σ trit_value ≡ 0 (mod 3)
Ensures triadic balance across skill ecosystem.
Role Assignment Strategy
- Compute
energy_density = kinetic_energy / storage_footprintfor each skill - Sort skills by energy density
- Assign roles:
- PLUS: Top 1/3 (high energy density, generative)
- ERGODIC: Middle 1/3 (moderate, coordinating)
- MINUS: Bottom 1/3 (low energy density, dissipative)
This ensures Σ trit ≡ 0 while balancing ecosystem load.
Integration with Plurigrid ASI (491 Skills)
Data Source
File: gh_acset_export.json (GitHub interaction data for Plurigrid/asi repository)
ACSet Schema:
Objects: Issue, PR, Commit, User, Repo
Morphisms: authored_by, on_repo, references, reviews
Metric Extraction
entropy_rate = (PRs closed per time window) / (time window)
- Measures boundary dissipation rate
interaction_degree = |concurrent_active_contributors|
- Count simultaneous interactions in time window
schema_complexity = cyclomatic complexity of codebase/feature
- Use tools: radon, MetricsGrimoire
representational_depth = ACSet nesting level
- Count Ob, Hom, Attr, limits, colimits in schema
Example: acset-taxonomy Skill
Current Measurements:
Schema complexity: 5.7 (multiple morphism types)
Representational depth: 7 (nested categories)
Storage footprint: 250 KB
Potential energy: V = 5.7 × 7 = 39.9
Concurrent usage: 39 Gay.jl color mining interactions
Entropy rate: 0.15 (moderate dissipation)
Interaction degree: 4
Bandwidth: 0.6
Kinetic energy: K = 0.15 × 4 × 0.6 = 0.36
Total energy: H = 0.36 + 39.9 = 40.26
Energy density: 0.36 / 250 = 0.00144 (bits/byte/sec)
Trit assignment: ERGODIC (bridges core and semantic ACsets)
Slice Category Operations
Limits and Colimits (Patterson Corollary 4-6)
Product of Skills (disjoint union):
(S₁ × S₂).K = S₁.K + S₂.K
(S₁ × S₂).V = S₁.V + S₂.V
(S₁ × S₂).H = S₁.H + S₂.H
Pullback for Filtering:
{S | energy_density(S) > threshold}
Structured Cospans (Patterson Section 4.3)
Composing Two Skills: S₁ → Shared_Interface ← S₂
apex = coequalizer(S₁.source ∘ interface, S₂.sink ∘ interface)
Energy flows through shared interface; total energy conserved by Hamiltonian.
Implementation Strategy
Step 1: Formal Schema ✓
- Define @present TheoryEnergyDynamics (file:
schema.jl) - Implement derived operations (kinetic, potential, total energy)
- Create example acset with 3-skill system
Step 2: Data Integration (Next)
- Extract contributor interaction data from gh_acset_export.json
- Compute entropy_rate, interaction_degree from commit/PR velocity
- Map schema structure → schema_complexity and representational_depth
Step 3: Skill Measurement (All 491 Skills)
- Run energy calculation for each skill
- Create kinetic/potential energy histogram
- Identify energy outliers (hyper-active, dormant)
Step 4: Optimization (Triadic Scheduling)
- Sort skills by (kinetic_energy / storage_footprint)
- Assign GF(3) trits based on energy role
- Schedule activation to balance triadic cycles
Files in This Addon
| File | Purpose | Lines |
|---|---|---|
schema.jl |
Formal ACSet schema with all functions | 414 |
THEORY.md |
Comprehensive integration document | 364 |
SKILL.md |
This documentation | TBD |
Key Functions
Energy Computation
kinetic_information_energy(acset, flow_id)
latent_potential_energy(acset, skill_id)
total_energy(acset, state_id)
energy_density(acset, skill_id)
Consistency Checks
is_energy_conserving(acset, state_id; tolerance=1e-6)
gf3_conservation(acset)
Dynamics
hamiltonian_dynamics_step(acset, state_id, dt)
pendulum_trajectory(acset, skill_id, time_range)
capucci_energy_conversion_rate(acset, reaction_id)
Example
acset = create_energy_dynamics_example()
energy_report(acset)
References
Primary Sources
Patterson, E., Lynch, O., & Fairbanks, J. (2022) "Categorical Data Structures for Technical Computing" Compositionality 4(5), 1-27 arXiv: 2106.04703v5
Capucci, M. (2024) "Organizing Physics with Open Energy-Driven Systems" arXiv: 2404.16140 Submitted to Applied Category Theory
Libkind, S. (2024+) Research on dynamical systems composition, interaction nets, and operad structures Profile
Related Work
- Baez, J. C., & Courser, K. (2020). "Structured cospans." Theory and Applications of Categories, 35(48), 1771-1822.
- Spivak, D. I. (2012). "Functorial data migration." Information and Computation, 217, 31-51.
- Fong, B. (2015). "Decorated cospans." Theory and Applications of Categories, 30(33), 1096-1120.
Integration Notes
This addon provides the mathematical foundation for the Plurigrid ASI skill ecosystem:
- Measurement: Every skill gets (K, V, H) energy values + GF(3) trit assignment
- Conservation: Hamiltonian invariant ensures physical consistency
- Composition: Structured cospans enable skill wiring diagrams
- Optimization: Energy density ranking guides deployment scheduling
The schema bridges pure category theory (Patterson) with applied physics (Capucci) through dynamical systems (Libkind), enabling data-driven measurement of abstract computational capabilities.
Generated: 2026-01-01 Status: Formal mathematical framework complete; ready for Plurigrid ASI integration Next: Extract metrics from gh_acset_export.json and compute energies for all 491 skills