A General Mechanism for Major Evolutionary Transitions Applied to the Planetary Scale
Cooperation Produces Specialization
Specialization reduces metabolic overhead by eliminating redundant machinery, but at the price of dependence on other specialists. A bacterium in a biofilm loses biosynthetic pathways and the capacity to revert to independent existence.
Engine 1: The Vulnerability- Cooperation Paradox
Why components merge
Specialization Creates an Irreversible Vulnerability Ratchet
Specialization increases individual vulnerability. Vulnerability demands deeper cooperation. The cycle ratchets: each turn produces more specialization, more vulnerability, more interdependence.
Growth Overwhelms Existing Communication Channels
The very success that drives expansion threatens to overwhelm the communication systems that enabled it. Coordination demand grows as Nδ: when every component must coordinate with every other, δ = 2 and demand grows as N².
Engine 2: The Scale- Communication Challenge
Whether they merge
Communication Topology (δ) Determines the Outcome
Chemical diffusion yields δ ≈ 2. Hierarchical networks reduce effective communication scaling to δ ≈ 1.0 to 1.15. A Major Evolutionary Transition is a qualitative shift that reduces δ.
Agrarian Empire Cycles vs. Post-Telegraph Stability
Limited to courier speed, empires cycled: growth, administrative overload, fragmentation, reconsolidation, repeat. Territory stayed within about 14 days’ travel of the capital (20 empires). Crossing ICOLD with the telegraph (1837) ended the cycle.
The Current Frontier: Communication Achieved, Cooperation Lacking
Global networks connect over five billion people (ITU, 2023). The communication problem, for the first time in the history of human civilization, is not a binding constraint. The cooperation problem is.
The Coupling of Both Engines Drives Phase Transitions
Breakthrough Yields a Major Evolutionary Transition
Loop 1 generates the pressure to integrate. Loop 2 determines the outcome. When communication innovation keeps pace with growth, previously independent entities merge into a higher-level entity with emergent capabilities none possessed alone.
The Ratchet Is Irreversible: The Same Loop Across 2 Billion Years
Mitochondria have not reverted to free-living bacteria in 2 billion years
Human cities cannot feed themselves without global supply chains (Henrich, 2016)
The 8-Stage Communication Sequence
The sequence is the same across substrates despite the substrates sharing no physical mechanism. Each stage provides the infrastructure that makes the next stage possible.
The Sequence Is Not Arbitrary
Broadcast requires point-to-point channels to already exist. Skipping a stage is not merely unlikely. It is structurally impossible: the later stage lacks the physical substrate on which it depends.
ICOLD, the Great Filter
1. DirectContact-range, sender-receiver
Cellular
Ant colony
Human
Chemical exchange between adjacent cells
Antennation, trophallaxis
Speech, gesture
2. Indirect Persistent (IPC)Information encoded in environment
Cellular
Ant colony
Human
Extracellular matrix signaling, biofilm quorum sensing
Super-Exponential Compression of Inter-Stage Intervals
Speech to writing: tens of thousands of years. Telegraph (Stage 3) to the internet (Stage 6): 159 years. Internet to LLMs (Stages 6 to 8): approximately 30 years.
ICOLD, instantaneous communication over long distance: transmission time shifts from t ∝ x² (diffusion) to t ∝ x (waves). The threshold between colony and organism.
The Ant Trap: Extraordinary Complexity, Permanently Capped at Stage 2
Agriculture, animal husbandry, warfare, architecture and continental supercolonies, with Stages 1 and 2 alone. Pheromones diffuse and degrade (δ = 2). The transition to a higher-level individual never occurs.
Nyx Redondo Ronin Institute, Montclair, NJ, USA · IamI.Earth Foundation, Stockholm, Sweden The Two Engines of Evolutionary Transitions, v3.1 · doi.org/10.5281/zenodo.19157559 CCS 2026, poster 166 · iami.earth/ccs166